BusinessPhone Communication Platform 5.1
Facilities

## IP-Extension (H.323 clients)

Content Page

Definition
References to other documents
Use
Operation
Gatekeeper
Extension Gateway
Registration of IP-Extensions
Unregistration of an IP-Extension
ASB 150 02 functions, supported by IP-clients
Voice Transmission Quality
Error situations
Capacity
Limitation
Installation/Programming of Dialog 3413
Pre-requisites
Software components of Dialog 3413
Configuration File (IP-phone.cfg)
Installation of the ’Configuration Web Server’
Programming of Dialog 3413
Installation/Programming of Microsoft® NetMeeting
Prerequisites
Installation
Programming
Programming of ASB 150 02
Gatekeeper data
Extension Gateway data
Initiate IP-Extension
IP Extension data
Maintenance
Backup Management of the Gatekeeper’s registration table
Supervision of the Extension-Gateway table
Supervision of the IP-Extension registration table
Equipment/Environment
Central Software
IPU board
Pre-requisites to the customer‘s LAN environment
Pre-requites to the IP-Extensions
Glossary

## Definition

The IP-Extension function provides an integration of packet switched H.323 compliant clients, residing on a Local Area Network into the circuit-switched world of ASB 150 02.

The IP-Extension function is based on two components, a Gatekeeper and an Extension Gateway, which are both located on the IPU board.

The implementation complies to the H.323 standard with an additional proprietary enhancement supported by the Ericsson IP clients.

The following clients have been tested:

- Ericsson Office IP-Phone Dialog 3413 (DBC 413)
- BusinessPhone BackStage Version 4.0 *)
- Microsoft® Netmeeting Version 3.01 (Standard H.323 PC-Client)

Note

The IP- Extension functions are only ensured for the clients listed above. No warranty is taken when any other clients are used.

*) BackStage was not yet launched when this document was finalised. For further details see dedicated userguide on the Product CD-ROM FASBS 102 209.

## References to other documents

Board description of the IPU
see System description, (1551-ASB 150 02 Uen)

Installation and Prerequisites
see Installation instruction for ASB 150 02,
(1531- ASB 150 02 Uen)

Licensing of voice channels
see Maintenance Instructions, (1541-ASB 150 02 Uen)

Capacity upgrading of the IPU
see Maintenance Instructions, (1541-ASB 150 02 Uen)

Firmware upgrading of the IPU
see Maintenance Instructions, (1541-ASB 150 02 Uen)

## Use

The integration of IP-Extension does not only provide voice over IP. The IP-Extension user can profit from most of the system functions as he has nearly the same speech quality as users of Digital System Telephones are accustomed to.

The IP-Extension function can be used at each office desk as well as in home-working environments, when being connected to the organization’s data network via a Remote Access Service. Remote users can access their work files, e-mail and voice mail, take part in conference calls and use other phone facilities by just using a single PC with an installed BusinessPhone BackStage or MS Netmeeting Client.

Furthermore the IP-Extension function has a big operational advantage for the customer’s LAN administrator. Apart from unified cabling for voice and data, it is simple to add, move and remove users. It is just a question of plugging a PC or terminal to the LAN.

## Operation

### Gatekeeper

The integrated Gatekeeper function is a full H.323 implementation with the main purpose to map the E.164 based directory number of an IP-Extension in ASB 150 02 to its IP-address on the LAN and vice versa.

The Gatekeeper’s mapping table will be initialized by the Extension Gateways which provide the configuration data of their assigned IP-Extensions (directory number, password). The Gatekeeper’s mapping table will be completed when the IP-Extensions log on (register) to the Gatekeeper and provide their current IP-address on the LAN.

Note

The Gatekeeper only accepts registration requests from IP-Extensions which correspond to the RAS signalling (Registration, Admission and Status Signalling) defined in the H.225 recommendations.

Before an IP-extension can be involved in a call, no matter whether it is active or passive, the Gatekeeper has to be asked for admission by providing the Gatekeeper with information about the destination number.

If the admission is confirmed by the Gatekeeper, the dedicated Extension Gateway will be involved for further call signalling and call establishment.

Note

One Gatekeeper can serve several Extension Gateways belonging to the same LAN. In case of several independent LANs, each of them requires its own Gatekeeper.

### Extension Gateway

Up to 128 IP-Extensions can be assigned to one single IPU and its integrated Extension Gateway. The Gateway takes care about the signalling and the provisioning of the voice channels.

By setting up IP-Extensions on the IPU, the dedicated Extension Gateway connects itself to the Gatekeeper by using a proprietary Gatekeeper Data Protocol
(GKDP) in order to transmit the following data to the Gatekeeper’s database:

- Directory number of the IP-Extension
- Defined password for registration
- Defined IP-address, registration is only allowed from a single point.

Furthermore the connection between the Gatekeeper and the Extension-Gateway is used to exchange the status of the IP-Extension.

Once an IP-Extension is defined in the Gatekeeper‘s database, it is a valid directory number, within ASB 150 02. In order to reach the physical terminal/PC-client behind this directory number it is necessary that this terminal/PC-client logs on (registers) to the Gatekeeper, otherwise the call will be diverted to the directory numbers defined by the commands.

0172 Fixed diversion destination for internal calls, if cordless/IP-Instrument is not available

and

0173 Fixed diversion destination for external calls, if cordless/IP-Instrument is not available.

### Registration of IP-Extensions

When an IP-Extension requests a registration at the Gatekeeper, it provides the following data:

- Identity

- IP-Extension directory number in ASB 150 02
- Defined password (Optional)
- IP-address

- The ports used for Q.931 and RAS signalling
- Type of end point

The Gatekeeper verifies whether the provided identity matches with the data stored in his database. Dependent on the configuration of the IP-Extension, up to four security levels can be defined:

- IP-Extension directory number must be valid
- IP-Extension directory number + password must be valid
- IP-Extension directory number + IP-address must be valid
- IP-Extension directory number + password +IP-address must be valid.

If the identification process has been passed successfully, the IP-Extension is ready to make and to receive calls.

If an IP-Extension is registered to the Gatekeeper and an additional registration request is performed from an other physical terminal/PC-client with the same identity, then the first registered terminal will be unregistered and replaced by the latter one.

#### Registration procedure for Dialog 3413

- Enter the desired directory number
- Press the menu key ’Log on’

This step is optional and depends on whether a password has been defined by command 0701 Registration password as well as on whether the terminal is configured to request a password.

- Enter the defined password
- Press the menu key ’Log on’

If the registration is accepted the following display will be shown.

Otherwise the first display will be shown again.

#### Registration procedure for
Microsoft® Netmeeting Version 3.01

##### Automatic registration

- Start Microsoft® Netmeeting.
  Normally the application registers itself to the predefined Gatekeeper during start up.
  For a definition of the Gatekeeper, see chapter Installation/Programming of Microsoft® NetMeeting

The Icon in the Status bar shows the status of the log- on procedure.

Log on is still ongoing: |  |  |
Log on passed |  |  |
Log on failed |  |  |

If the registration is not successful, this will be indicated by the following Error message:

- Gatekeeper is either not active or the defined IP-address of the Gatekeeper is invalid.

- The defined identity is not correct (either directory number and or the password do not match)

##### Manual registration

If the client has been logged off, it is possible to log on again without restarting the application.

- Click on ’Call’ in the main toolbar
- Click on ’ Log On to XXX.XXX.XXX.XX’ to connect to the defined Gatekeeper

### Unregistration of an IP-Extension

If there is no need for the IP-Extension to be logged on, as its user is leaving his working place or the PC on which the IP-client is running is shut down, it is possible to log off (unregister) the IP-Extension from the Gatekeeper. After successful unregistration all incoming calls to the IP-Extension will be diverted according to the commands:

0172 Fixed diversion destination for internal calls, if cordless/IP-Instrument is not available

and

0173 Fixed diversion destination for external calls, if cordless/IP-Instrument is not available.

#### Unregistration procedure for Dialog 3413

- Press the menu key ’Log off’
- Confirm the log off request by pressing the menu key ’ Yes’

#### Unregistration procedure for
Microsoft® Netmeeting

##### Automatic unregistration

An automatic unregistration can simply be done by closing the application.

##### Manual unregistration

- Click on ’Call’ in the main toolbar
- Click on ’ Log Off to XXX.XXX.XXX.XX’ to disconnect from the Gatekeeper

### ASB 150 02 functions, supported by IP-clients

The following table lists all ASB 150 02 features and whether or not they are supported by the IP-Extensions
(X=supported )

For detailed description on how to use this functions on the DBC 413 Office IP-telephone, please refer to the user guide EN/LZTBS 151 345.

Feature (Blatt 1 von 3) | IP-Extension | Remarks
Dialog 3413 | MS NetMeeting Version 3.01 | BackStage Version 4.0 | H.323 interface
Abbreviated number dialling – common numbers | X | X | X | X |
Abbreviated number dialling – individual numbers via key pad | X | X | X | X |
Abbreviated number dialling – individual numbers via programmable key |  |  |  |  | The programmable keys of DBC 413 and BackStage can be used for individual abbreviated number dialling, however this programming is not stored in ASB 150 02
Account numbers | X | X | X | X | Entry of support codes during conversation is not supported.
ACD agent-telephone |  |  |  |  |
ACD supervisor-telephone |  |  |  |  |
Alarm function |  |  |  |  |
Authority code | X | X | X | X |
Automatic callback | X |  | X | X*) |
Automatic Redial |  |  |  |  |
Automated Attendant | X |  | X | X*) |
Background music |  |  |  |  |
Bypass call diversion and follow me | X | X | X | X |
Call metering |  |  |  |  |
Call pick up - common | X |  | X | X*) |
Call pick up - ext. group | X | X | X | X |
Call pick up - individual | X |  | X | X*) |
Call waiting indication | X | X | X | X |
Calling Line Identification | X | X | X | X |
Calling Line Identification restriction (ISDN) |  |  |  |  |
Calling Name identification | X | X | X | X |
Camp on | X |  | X | X*) |
Clock and diary | X | X | X | X | Date & time will either be handled by the instrument or a Time server (NTP). There is no relation to the date & time from ASB 150 02.
Common bell | X | X | X | X |
Conference | X |  | X | X*) |
Connected Line Identification | X | X | X | X |
Connected Line Identification Restriction (ISDN) |  |  |  |  |
Connected Name identification | X | X | X | X |
Connection state message |  |  |  |  |
Conversation recording |  |  |  |  |
CT (Computer Telephony) | X | X | X | X | Supports only analog phone functionality
CTI-Groups |  |  |  |  |
Dictaphone function | X |  | X | X*) |
DISA | X |  | X | X*) |
Diversion direct | X | X | X | X |
Diversion on busy | X | X | X | X |
Diversion on no-reply | X | X | X | X |
Doorphone (answering) | X |  | X | X*) |
Fault indication |  |  |  |  |
Follow me | X | X | X | X |
Group hunting | X | X | X | X |
Hot line | X | X | X | X |
Hotel guest room telephone | X | X | X | X | Supports only analog phone functionality
Hotel reception telephone |  |  |  |  |
Hotel service telephone |  |  |  |  |
Immediate answer |  |  |  |  |
Information | X |  | X | X | Supports only analog phone functionality
Inquiry | X |  | X | X**) |
Intercom |  |  |  |  |
Intrusion | X |  | X | X*) |
ISDN Caller List |  |  |  |  | The Dialog 3413 and BackStage support an independent caller list (internal and external), however it has no relation to the one in ASB 150 02
ISDN Malicious Call Ident. |  |  |  |  |
Key system function |  |  |  |  |
Last external number redial | X | X | X | X |
Least Cost Routing | X | X | X | X |
Loudspeaker paging |  |  |  |  |
Mailbox-system common | X |  | X | X*) |
Mailbox-system individual | X |  | X | X*) |
Message-system voice | X |  | X | X*) |
Message-system call me | X |  | X | X*) |
Message-system text |  |  |  |  |
Name selection |  |  |  |  |
Night service | X | X | X | X |
Paging |  |  |  |  |
Parking for common access |  |  |  |  |
Parking individual | X |  | X | X**) |
Private trunk line |  |  |  |  |
Programmable and fixed keys |  |  |  |  |
Refer back | X |  | X | X**) |
Reminder service | X | X | X | X |
Saved ext. no. redial |  |  |  |  |
Secretary function |  |  |  |  |
Supervision |  |  |  |  |
Tandem - Slave | X | X | X | X |
Tandem - Master | X | X | X | X | With restrictions like missing display info; no slave supervision
Telephone directory |  |  |  |  |
Trunk line key |  |  |  |  |
Voice mail box, external |  |  |  |  |

*) Only supported if the client supports suffix dialling

**) Only supported if the client supports hook flash

### Voice Transmission Quality

In order to keep the required bandwidth for a Voice-over-IP call as low as possible, voice codes on the IPU are used to compress the used telephony bandwidth of 64kbit/s to a lower value. However, each compression causes a reduction in the voice transmission quality.

ASB 150 02 supports the following voice codecs.

- G.711 provides uncompressed voice transmission, and nearly the same voice quality as a circuit- switched line.
- G.729 Annex A (with Annex B) provides compressed voice transmission (8 kbit/s). The advantage of this codec is that the compression rate is down to 8 kbit/s, while the speech quality is on a very high level (comparable G.711)
- G.723.1 provides compressed voice transmission (6,4 kbit/s) with some reductions in the voice quality, however it occupies less bandwidth.

ASB 150 02 is prepared for 4 different transmission quality levels (command 2165-2168), which can be defined on extension level for outgoing Trunk IP-Gateway calls as well as for calls to IP-Extension. Each level comprises a set of 5 voice codecs, whereby the access of the codecs depends on a different order of priority.

The H.323 standard does not clearly define, how an IP-Extension can be forced to use a codec which ASB 150 02 proposes. This unclear situation in the standard might result in the use of different voice codecs for each speech direction. In order to avoid such a situation, it is recommended to define one voice transmission quality table which only contains one codec for the highest priority, the last four should be “undefined”. By using this way of programming, it is secured that one and the same codec is used for both speech directions. If the IP-Extension does not support this codec, no calls can be set up.

### Error situations

#### Restart situations

The Gatekeeper maintains all the IP-Extension registrations and their status in a volatile memory on the IPU. A system restart or an IPU restart on which the Gatekeeper is enabled would automatically result in a loss of all current registrations.

The IP-Extensions registered to the Gatekeeper will not recognise the restart, and will also no longer be able to make and receive calls. All incoming calls to the IP-Extension will in this case be diverted to the destinations defined by the commands:

0172 Fixed diversion destination for internal calls, if cordless/IP-Instrument is not available

and

0173 Fixed diversion destination for external calls, if cordless/IP-Instrument is not available.

In order to get registered again, the IP-Extensions need to be unregistered by the user and then re-registered again.

In order to overcome the drawback, the IPU is configured by default, to backup the Gatekeeper’s registration table on its dedicated Compact Flash card. This backup function provides a reload of the prior IP-Extensions registration status, in case of a system restart or in case of a restart of the Gatekeeper’s IPU.

The reload of the status effects only IP-Extensions which belong to an Extension-Gateway which is up and registered to the Gatekeeper. If an Extension-Gateway does not register to the Gatekeeper, due to a faulty or removed IPU board, the Gatekeeper will automatically unregister all IP-Extensions assigned to this Extension-Gateway and also remove them from his registration table after a time out of 24 hours.

## Capacity

The IPU can support the Gatekeeper, Trunk Gateway and Extension Gateway function at the same time.

Up to 128 IP-Extensions can be assigned to one IPU, whereby the maximum number of voice channels on the IPU is limited to 16.

By using multiple IPUs, the number of IP-Extensions can be enhanced to the ASB 150 02 limit of a maximum of 200 extension.

Note

Due to thermal considerations the IPU cannot be positioned in every free slot. By default, it has to be mounted in the highest board position of the cabinet. If any other position has to be chosen or in case of multiple IPUs, then the right hand board position next to the IPU must always be left free.
This restriction does not apply, if the cabinet BDVBS 101 06 (BP 128i) is used.

## Limitation

The signalling and the audio media stream of all calls, even from H.323 client to H.323 client, will be routed through the ASB 150 02 system.

Video media streams are not supported.

When Dialog 3413 is used there will be no deviation in the ring cadences between an internal, external or call- back call.

## Installation/Programming of
Dialog 3413

### Prerequisites

Before installing the Dialog 3413 telephones at the customer site the following prerequisites have to be clarified with the customer’s LAN administrator.

#### LAN connection

Verify if it is possible to connect the telephone to the LAN and check that an Ethernet cable is available. The maximum line length between an IP-telephone and the LAN (Hub, Switch, Router,...) is 100 metres according to IEEE 802.3. Only CAT 5 cables may be used for the connection (e.g. Ericsson cable TSR 482 0204/2600).

#### Mains connection

As Dialog 3413 is powered by a 24 V AC/AC adapter make sure, that a free mains outlet is available next to the telephone, whereby no special earthing is required.

The following 24 V AC/AC adapters are available

- RES 141 312/1 (230 V)
  for the EU market except for the UK.
- RES 141 314/1 (115V)
  for the UK market

#### Power hub

Instead of using a dedicated power supply for each Dialog 3413 telephone, it is also possible to feed them via the LAN by using the Ericsson Powerhub.

The Ericsson Powerhub is an autonomous unit that can inject 24 V DC-power over a 100-metres distance into the spare pairs of CAT 5 (or higher) cables so as to provide inline power to IP devices.

The Powerhub comes in three models:

- 4006 (BML 351 01) 6 port unit
- 4012 (BML 351 02) 12 port unit
- 4024 (BML 351 03) 24 port unit

For further details of the Powerhub please refer to following documents:

- Description Powerhub
  (1551-BML 351 01 Uen)
- Installation Instructions Powerhub
  (1531-BML 351 01 Uen)
- Installation Test Instructions Powerhub
  (1532-BML 351 01 Uen)
- Fault Location Instructions
  (1545-BML 351 01 Uen)

When the telephone is fed by the Powerhub, the splitter cable (RPM 130 021/1) has to be used at each telephone in order to split the power lines from the data lines which come via the normal LAN cable.

#### Central Configuration Web Server

The IP-telephone is delivered with the software version that was valid when the telephone was produced. It is delivered with the configuration file to be used with ASB 501 04 (MD110).

A central ’Configuration Web Server’ must be installed at the customer site, to start up every new
IP-telephone in the ASB 150 02 mode, with the latest boot and application image as well as with a defined set of display languages. Furthermore the ’Configuration Web Server’ is used for future maintenance purposes in order to update the application images of all installed Dialog 3413 telephones at the same time.

The ’Configuration Web Server’ may not necessarily be a dedicated server, the required files can also be installed on the customer’s Intranet Web-Server or on the BMS Server.

The following HTTP servers have been tested with the IP telephone:

- Internet Information Server on
  Microsoft® Windows® NT4
- Internet Information Server on Microsoft® Windows® 2000 server.
- Apache 1.3.3 on Redhat® Linux Version 5.2.

#### Time Server

In order to keep all Dialog 3413 telephones updated with an accurate time & date information, it is recommended to connect them to a time server using the NTP (Network Time Protocol) protocol. The
Dialog 3413 supports SNTP (Simple Network Time Protocol) which is a subset of NTP. If there is no connection to a time server, the time & date information has to be set manually on all telephones.

#### DHCP Server

A DHCP server is used for providing the IP-address, subnet mask and default gateway data to the IP telephones. This data is obtained via the DHCP standard fields (1 and 3).

The DHCP server can also be used to transmit vendor-specific information (043) to the IP-telephones. In case of the Dialog 3413, this is useful for the transmission of the IP-address of the ’Configuration Web Server’ and if this server resides outside the customer’s Intranet also for the proxy server’s IP address and the port number.

Syntax of the vendor specific information field (043)

n | i1 | i2 | i3 | ..... | T1 | n1 | d1 | d2 | ..... | T2 | n2 | d1 | d2 | ..... | T3 | n | d1 | d2 |

n |  | Length of the Vendor ID |
ix |  | Vendor ID string |
Tx |  | Vendor specific information tags (identifier) |
nx |  | Length of the data item |
dx |  | Data item string |

All values have to be entered in HEX

##### Dialog 3413 settings in the vendor specific information field

n |  | The vendor ID ’Ericsson IP-Phone’ has 17 characters = HEX: 11 |
i1-i17 |  | ’Ericsson IP-Phone’ = HEX: 45:72:69:63:73:73:6F:6E:20:49:50:2D:50:68:6F:6E:65 |
T1 |  | 01 (Tag 01 is used to define configuration Web Server’s IP address) |
T2 |  | 02 (Tag 02 is used to define the proxy server’s IP-address) |
T3 |  | 03 (used to define the port of the proxy server) |

Example:
Central configuration server resides within the customer’s Intranet and has the IP-address 159.225.50.77
The IP-address has a total length of 13 characters n1= 0D HEX
The IP-address translated into HEX results in d1-d13= 31:35:39:2E:32:32:35:2E:35:30:2E:37:37

Total string HEX: 11:45:72:69:63:73:73:6F:6E:20:49:50:2D:50:68:6F:6E:65:01:0D:31:35:39:2E:32:32:35:2E:35:30:2E:37:37

The following DHCP servers have been tested with the IP telephone:

- Microsoft® Windows® NT4 server
- Microsoft® Windows® 2000 server.
- Redhat® Linux.

### Software components of Dialog 3413

By using the ’Configuration Web Server’ it is possible to upgrade and downgrade the software in the telephones

The following software components are used for the upgrading and downgrading process:

File name (stated revisions have to be seen as examples) | Article number | Description
oiprf_R1A.dat | CAA 158 0012 | Application image Contains the H.323 stack and the user interface.
oipbf_R2A.dat | CAA 158 0015 | Boot ROM software This software is used for start-up and to load the application into the IP-telephone.
IP-phone.cfg | CAA 158 0013 | Configuration file ’IP-phone.cfg’. This file is used to initiate and set parameters in the telephone such as: Type of system on which the Dialog 3413 shall register. Version and the location of the application and boot file to be used Location of available language files and definition of the start up language Definition of the Codec priority Definition of the timezone and the IP-address of the time server
Dansk.dat, Deutsch.dat, Espanol.dat, Italiano.dat, Portugues.dat, Svenska.dat, French.dat, Finnish.dat, Dutch.dat. | CAA 158 0014/06 CAA 158 0014/02 CAA 158 0014/03 CAA 158 0014/04 CAA 158 0014/15 CAA 158 0014/01 CAA 158 0014/04 CAA 158 0014/05 CAA 158 0014/16 | Language files for the display texts.

All required software components of the Dialog 3413 phones are zipped to one software package (FASBS 102 213/IP) which is stored on the BMS CD-ROM in the directory ’DBC413Images’.

Note

The BMS CD-ROM contains a software package which was valid at the date when the BMS CD-ROM was produced. The latest files will always be provided by your local Ericsson Support Center.

Note

Before you continue to modify and to install the software components on the ’Configuration Web Server’, you should verify the software revisions installed in the telephones, by pressing C+*+4 simultaneously for at least one second.
As the IP-telephone always fetches the configuration file from the ’Configuration Web Server’ when powered up, you should make sure that the software revisions on the server are higher as compared to the ones in the telephone. A difference between the software in the telephone and on the server will automatically cause a download of the server software into the FLASH memory of the telephone.

Save the required software package file, into a common directory on your PC. All the available files are normally zipped. Check that following structure is available in the directory ’ebc’, after the extraction.

### Configuration File (IP-phone.cfg)

The configuration file (IP-phone.cfg) is basically pre-defined for ASB 150 02 systems, only the start up language and the time parameters have to be defined. In case of upgrading the software on the Configuration server it is recommended to copy the settings of the language and time parameters from the existing configuration file into the new one instead of re-entering them again.

As the configuration file is a normal text file, it can be modified with any available text editor.

#### System parameters (completely predefined)

[System]
System=BP
OverLap=YES
RRQTtl=OFF

##### System

Defines the type of system (BP = BusinessPhone) to which the telephone is to register

##### Overlap

Defines how the entered digits are sent to the gatekeeper with allowed values:

YES (default) |  | The entered digits are sent one by one to the Gatekeeper. |
NO |  | All entered digits are sent in a block to the Gatekeeper and the call is initiated by pressing the call key. |

Overlap data identifier omitted. Same as if overlap is set to YES.

##### RRQTtl. (Registration Request Time to live)

The Time to live re-registration parameter (defined in seconds) is used to check whether the connection between the IP telephone and the Gatekeeper is still up. This value is not used for ASB 150 02 systems and therefore is set to OFF.

#### Software parameters (completely predefined)

[Software]
HardwareRev=R2*
BootFile=/ebc/bootrom/OIPBF_R3A.dat
BootVersion=R3A

ApplicationFile=/ebc/application/OIPRF_R5B.dat
ApplicationVersion=R5B

##### HardwareRev

Defines the hardware version for the supported telephone (same as written on the bottom of the telephone). Normally HardwareRev is defined as Rn* (n is a digit), which means that all Rn versions are valid (RnA, RnB, RnC etc). Example: R2* means that the software can be used in R2A, R2B, R2C etc. hardware versions of the telephone.

##### BootFile

Defines the path (must not be changed) and file name for the bootrom.

##### BootVersion

Defines the version of the bootrom software.

##### ApplicationFile

Defines the path (must not be changed) and file name for the application software.

##### ApplicationVersion

Defines the version of the application software

#### Language parameters (need to be set)

[Language]
OptionalLanguage=/ebc/language/Dansk.dat,
OptionalLanguage=/ebc/language/Deutsch.dat,
OptionalLanguage=/ebc/language/Espanol.dat,
OptionalLanguage=/ebc/language/Italiano.dat,
OptionalLanguage=/ebc/language/Portugues.dat,
OptionalLanguage=/ebc/language/Svenska.dat,
OptionalLanguage=/ebc/language/French.dat,
OptionalLanguage=/ebc/language/Finnish.dat,
OptionalLanguage=/ebc/language/Dutch.dat,
StartupLanguage=English

##### OptionalLanguage.

Defines the path (must not be changed) and file name for the available language files. The language files stated here are shown in the language menu of the IP telephone.

##### StartupLanguage

During the boot sequence only English is available, but when the telephone is activated, one of the languages which is defined under ’OptionalLanguage’ can be used instead.

#### Codec parameters (completely predefined)

[Codecs]
G.711A
G.711U
G.729
G.723

States all supported codecs and their priority order. Only one codec must be stated per line.

#### Diffserv (Differentiated Services) parameters (completely predefined)

[DIFFSERV]
Precedence=2
DSCP=2

Diffserv is a way to give priorities to speech packets in a packet network. It shall be set up in the routers, that handles the speech packets. Diffserv is based on the type of service (TOS) field in the IP packet heading. Diffserv is only set in UDP packets and consists of the fields Precedence (bit 0,1,2) and DSCP (bit 3 and 4). Bit 0 is the most significant bit.

##### Precedence

7 |  | (Network Control bit 0-2: 111) |
6 |  | (Internet Control bit 0-2: 110) |
5 |  | (Express Forwarding bit 0-2: 101) |
4 |  | (Class 4 bit 0-2: 100) |
3 |  | (Class 3 bit 0-2: 011) |
2 (default) |  | (Class 2 bit 0-2: 010) |
1 |  | (Class 1 bit 0-2: 001) |
0 |  | (Best Effort bit 0-2: 000) |

##### DSCP

3 |  | (High Drop Percentage bit 3-4: 11) |
2 (default) |  | (Medium Drop Percentage bit 3-4: 10) |
1 |  | (Low Drop Percentage bit 3-4: 01) |

#### Definition of the Time parameters (need to be set)

[Time]
TIMEZONE=CET:60:0:040101:110101
NTP-server=0.0.0.0

If no time server is available at the customer’s Intranet, you can delete the whole section from the configuration file.

##### Time zone

Defines the time zone, offset time compared to the Greenwich Mean Time and the daylight saving times.

id |  | name of the time zone, the system belongs to. EDT = Eastern daylight time CET = Central European Time |
D1 |  | time difference in minutes, eastwards of the Greenwich Mean Time (GMT). |
D2 |  | time difference in minutes, westwards of the Greenwich Mean Time (GMT) |
D3 |  | daylight saving time begins (month-day-hour). e.g. 25 March 3 a.m. =032503 |
D4 |  | daylight saving time ends (month-day-hour). e.g. 28 Oct. 3 a.m.=102803 |

Note

The time zone parameter is only relevant, if a time server is available. The time is updated at restart of the telephone and every 2nd hour.

##### Time Server

Defines the IP-Address of the customer’s NTP Server.

### Installation of the
’Configuration Web Server’

After you have modified the configuration file, you have to copy the whole extracted ’ebc’ directory to:

- the root of the customer’s Intranet Web-Server
- or to the ’wwwroot’ directory on the BMS Server.

Read out the IP-address of the customer’s Intranet Web-Server or the BMS Server and use this as the address for the ’Configuration Web Server’ when setting up the Dialog 3413 telephones.

Verify that the ’IP-phone.cfg’ file will be available under one of the following addresses:

- http://<Intranet Web-Server IP address>/ebc/IP-phone.cfg
- http://<BMS-Server IP address>/ebc/IP-phone.cfg

### Programming of Dialog 3413

In order to interwork accordingly with the ASB 150 02 system, the following programming steps have to be performed on each IP telephone.

- Initialize the Network settings
- Modify the Network settings (if needed)
- Set-up the display language *)
- Set-up Time & Date *)

*) optional

The difference between the initialization and the modification procedure of the Network settings is that the first one will be performed when powering up the telephone and the later one will be performed during normal operation.

#### Administrator mode

The administrator mode enables the technician to modify the IP settings of the telephone, which are by default hidden for the end user.

To enter the administrator mode, press the keys C+*+5 simultaneously for a few seconds until the confirmation ring is sent. The administrator mode is valid until the IP settings menus is left.

#### Initialize the Network settings

Dependent on the customer’s LAN configuration the IP- telephone can be set up by using one of the following options.

- Dynamic IP address assignment by using a DHCP Server, which transmits a vendor specific information
- Dynamic IP address assignment by using a DHCP Server, which does not transmit a vendor specific information
- Fixed IP-address assignment

In order to define the IP settings, the IP-telephone must be connected to the LAN and to the mains.

After connecting the IP telephone to the mains, the display will show a special pattern and all the LEDs will light. After a view seconds the display shows:

The X indicates a timer counting down from five to zero in steps of one second. In order to change the IP settings, the ’Administrator mode’ has to be entered before the timer expires. If the administrator mode is not entered, or if the menu key ’No change’ is pressed, the telephone will use the currently stored IP settings.

##### Menu structure in the Administrator mode

##### Menu structure in the Administrator mode (continued)

##### Menu keys in the Administrator mode

The following menu keys are used for navigation and modification within the administrator

Cancel |  | Skip the shown menu and move to the next one |
Erase |  | Erase the entered character |
Change |  | Change the current setting |
Save |  | Save the modification and move to the next menu |

##### Dynamic IP address assignment by using a DHCP Server, which transmits a vendor specific information

For reference see Menu structure in the Administrator mode

1. Connect the telephone to the mains
2. Enter the administrator mode
3. DHCP setting

- Modify the DHCP settings to the value YES by pressing the menu key ’ Change’
- Press the menu key ’Save’ to store this setting.

4. Connection to the DHCP server

- The telephones request the following data from the DHCP server:

- IP-address
- Subnet Mask
- Default gateway
- IP address of the Configuration Web Server (vendor-specific information)
- IP address of the proxy server (vendor-specific information)
- Port of the proxy server (vendor-specific information)

1. Connection to the Configuration Web Server

- The telephone fetches the configuration file from the Configuration Web server and compares the software of its FLASH memory with the one stored on the server. If they are different, it will be indicated on the display. Confirm the upgrade by pressing the menu key ’Yes’

1. Gatekeeper address
   Define the IP-address of the Gatekeeper.

Note

If the Gatekeeper address has already been defined by a previous process, step 6 and 7 will be omitted.

- Press the menu key ’Erase’ until the complete default IP-address is removed
- Enter the desired IP-address of the IPU on which the Gatekeeper is configured. If parts of the address contain only one or two digits, press * to insert the dot and to move to the next address block
- Press the menu key ’Save’ to store the new setting

1. Gatekeeper password

- Press the menu key ’Change’ to define whether or not the user shall be requested to enter a password during log on. (The used password is defined by the command 0701 Registration password in ASB 150 02)
- Press the menu key ’Save’ to store the new setting

2. Settings are completed when the following display is shown

##### Dynamic IP address assignment by using a DHCP Server, which does not transmit a vendor specific information

For reference see Menu structure in the Administrator mode

1. Connect the telephone to the mains
2. Enter the administrator mode
3. DHCP setting

- Keep the DHCP settings (default =NO) by pressing the menu key ’Cancel’

4. IP address of the telephone

- Skip this setting by pressing the menu key ’Cancel’

5. Subnet mask

- Skip this setting by pressing the menu key ’Cancel’

6. Default gateway

- Skip this setting by pressing the menu key ’Cancel’

7. WWW Server
   Define the IP-address of the Configuration Web Server.

- Press the menu key ’Erase’ until the complete default IP-address is removed.
- Enter the IP-address of the Configuration Web Server. If parts of the address contain only one or two digits, press * to insert the dot and to move to the next address block.
- Press the menu-key ’Save’ to store the new setting

8. WWW proxy server

- As the Configuration Web Server should always be located on the Intranet, keep the default setting (NO) by pressing the menu key ’Cancel’

9. Connection to the Configuration Web Server

- The telephone fetches the configuration file from the Configuration Web server and compares the software of its FLASH memory with the one stored on the server. If they are different, it will be indicated on the display. Confirm the upgrade by pressing the menu key ’Yes’.

1. Gatekeeper address
   Define the IP-address of the Gatekeeper.

Note

If the gatekeeper address has already been defined by a previous process, step 10 and 11 will be omitted.

- Press the menu key ’Erase’ until the complete default IP-address is removed
- Enter the desired IP-address of the IPU, on which the Gatekeeper is configured. If parts of the address contain only one or two digits, press * to insert the dot and to move to the next address block
- Press the menu key ’Save’ to store the new setting

1. Gatekeeper password

- Press the menu key ’Change’ to define whether or not the user shall be requested to enter a password during log on. (The used password is defined by the command 0701 in ASB 150 02)
- Press the menu key ’Save’ to store the new setting

2. Disconnect the telephone from the mains when the following display is shown

1. Connect the telephones to the mains again
2. Enter the administrator mode
3. DHCP setting

- Modify the DHCP settings to the value YES by pressing the menu-key ’Change’
- Press the menu key ’Save’ to store this setting.

4. Connection to the DHCP server

- The telephone requests the following data from the DHCP server:

- IP-address
- Subnet mask
- Default gateway

1. Connection to the Configuration Web Server
2. Settings are completed when the following display is shown:

##### Fixed IP-address assignment

For reference see Menu structure in the Administrator mode

1. Connect the telephone to the mains
2. Enter the administrator mode
3. DHCP setting

- Keep the DHCP settings (default =NO) by pressing the menu key ’Cancel’

4. IP address of the telephone

- Press the menu key ’Erase’ until the complete default entry is removed.
- Enter the desired IP-address of the telephone. If parts of the address contain only one or two digits, press * to insert the dot and to move to the next address block.
- Press the menu key ’Save’ to store the new setting.

5. Subnet mask

- Press the menu key ’Erase’ until the complete default entry is removed.
- Enter the new subnet mask.
- Press the menu key ’Save’ to store the new setting.

6. Default gateway

- Press the menu key ’Erase’ until the complete default entry is removed.
- Enter the IP-address of the default gateway.
- Press the menu key ’Save’ to store the new setting.

7. WWW Server
   Define the IP-address of the Configuration Web Server.

- Press the menu key ’Erase’ until the complete default IP-address is removed.
- Enter the IP-address of the Configuration Web Server.
- Press the menu key ’Save’ to store the new setting

8. WWW proxy server

- As the Configuration Web Server should always be located on the Intranet, keep the default setting (NO) by pressing the menu key ’Cancel’

9. Connection to the Configuration Web Server

- The telephone fetches the configuration file from the Configuration Web server and compares the software of its FLASH memory with the one stored on the server. If they are different, it will be indicated on the display. Confirm the upgrade by pressing the menu key ’Yes’

1. Gatekeeper address
   Define the IP-address of the Gatekeeper.

Note

If the gatekeeper address has already been defined by a previous process, step 10 and 11 will be omitted.

- Press the menu key ’Erase’ until the complete default IP-address is removed
- Enter the desired IP-address of the IPU on which the Gatekeeper is configured.
- Press the menu key ’Save’ to store the new setting

1. Gatekeeper password

- Press the menu key ’Change’ to define whether or not the user shall be requested to enter a password during log on. (The used password is defined by the command 0701 in ASB 150 02)
- Press the menu key ’Save’ to store the new setting

2. Settings are completed when the following display will be shown

#### Modify the Network settings

If a change of the Network settings is necessary after an already finalised set-up, this can be done directly by accessing the settings menu.

- Press the menu key ’Settings’

- Press the menu key ’Next’ or ’Previous’ to navigate through the Settings menu, until you reach the Network settings.

- Press the menu key ’Select’ to enter the Network settings menu

Note

Before any IP settings can be changed the the Administrator mode has to be entered.

##### Menu structure in the Administrator mode

Menu structure in the Administrator mode (continued)

##### Menu keys in the Administrator mode

The following menu keys are used for navigation and modification within the administrator mode

Exit |  | Leave the Network settings menu |
Previous |  | Move back to the previous menu |
Next |  | Move forward to the next menu |
Select |  | Select the desired setting for modification |
Cancel |  | Skip the shown menu and to move to the next one |
Erase |  | Erase the entered character |
Change |  | Change the current setting |
Save |  | Save the modification and move to the next setting |

#### Set-up the display language

Note

To modify the display languages the proper language files have to be stored on the ’Configuration Web-Server’, otherwise the modification request will be rejected and the default English display language remains.

- Press the menu key ’Settings’ to enter the configuration mode

- Press the menu key ’Next’ or ’Previous’ to navigate through the Settings menu, until you reach the Language settings.

- Press the menu key ’Select’ to modify the setting

- Press the menu key ’Next’ to select one of the available languages.
  After you have pressed the menu key ’Next’, the menu key ’Save’ will be active.
- Press the menu key ’Save’ to store the new setting
- Press the menu key ’Exit’ to leave the Settings menu

#### Set-up Time & Date

Note

The Time & Date data can only be modified if there is no connection to a Time Server. This does not apply for the definition of the format.

- Press the menu key ’Settings’ to enter the configuration mode

- Press the menu key ’Next’ or ’Previous’ to navigate through the Settings menu until you reach the Time & Date settings.

- Press the menu key ’Select’ to modify the setting

The Time & Date settings menu offers the following options:

- Definition of the time & date format
- Definition of the current time & date

##### Definition of the time format

- Press the menu key ’Next’ or ’Previous’ to navigate through the Time & Date settings menu, until you reach the Time format settings.

- Press the menu key ’Select’ to modify the setting

- Press the menu key ’Next’ to select either the 24 hour or the 12 hour mode. After you have pressed the menu key ’Next’, the menu key ’Save’ will be active.
- Press the menu key ’Save’ to store the new setting

##### Definition of the date format

- Press the menu key ’Next’ or ’Previous’ to navigate through the Time & Date settings menu, until you reach the date format settings.

- Press the menu key ’Select’ to modify the setting

- Press the menu key ’Next’ to select one of the available formats. After you have pressed the menu key ’Next’, the menu key ’Save’ will be active.
- Press the menu key ’Save’ to store the new setting

##### Definition of the current time

- Press the menu key ’Next’ or ’Previous’ to navigate through the Time & Date settings menu, until you reach the Time settings.

- Enter the time according to the selected time format. After you have entered the first digit, the menu key ’Erase’ and the menu key ’Save’ will be active.
- Press the menu key ’Save’ to store the new setting

##### Definition of the current date

- Press the menu key ’Next’ or ’Previous’ to navigate through the Time & Date settings menu, until you reach the Date settings.

- Enter the date according to the selected date format. After you have entered the first digit, the Erase and the Save button will be active.
- Press Save to store the new setting
- Press Exit to leave the Settings menu

#### Error case during set-up

If the IP-telephone is set-up for dynamic IP address assignment and there is no response from the DHCP server, the following menu will appear after two minutes

1. Check whether the LAN cable is connected properly
2. If yes, contact the customer’s LAN administrator

## Installation/Programming of Microsoft® NetMeeting

### Prerequisites

See chapter Prerequites to the IP-Extensions

### Installation

- Insert the CD-ROM of the BusinessPhone Management Suite FASBS 102 213/CD into the CD-ROM drive of the client´s computer. If the Autostart function of the operating system is activated, the introsequence starts up automatically.
- As soon as the introsequence has been fully loaded, you will see a menu from which you can either install the BusinessPhone Management Suite or BusinessPhone Tools. For the Microsoft® NetMeeting installation select BusinessPhone Tools and then Microsoft® NetMeeting.
- Follow the instructions of the install wizard to perform the installation.

### Programming

- After the application has been successfully installed, start the application for further configuration.
- Select the item Tools in the main toolbar and then the item Options to configure the connection to ASB 150 02

#### Options dialog

The options dialog covers 4 different tabs, whereby only the ’General’ tab is relevant for the connection with ASB 150 02.

##### Relevant Entries

First name, Last name |  | Both entries are used for the name indication of the own client in case of incoming and outgoing call. |

Note

The name will only be displayed on the own client and not to the conversation partner, he/she will always receive the username which is stored in ASB 150 02

Press the ’ Advanced Calling’ button to set up the connection to ASB 150 02

##### Required entries

Use a gatekeeper to place calls |  | Enter the desired IP-address of the IPU on which the Gatekeeper is configured |
Log on using my account name |  | Enter the password defined for the desired user in ASB 150 02, see command 0701 Registration password. |
Log on using my phone number |  | Enter the directory number assigned to the user in ASB 150 02, see command 5601 Extension directory number |

## Programming of ASB 150 02

Note

Any modification of the commands 2171 -2181 require a IPU restart.

### Gatekeeper data

2171 |  | Gatekeeper activated?

2172 |  | Gatekeeper identifier

2176 |  | Gatekeeper zone definition

### Extension Gateway data

2181 |  | Gatekeeper IP address

### Initiate IP-Extension

Enable the desired number of IP-extensions on every IPU which has a configured Extension-Gateway.

Select the desired IPU and click on the ’Board configuration’ button in the ’Card information’ dialog, to initiate the
IP-Extensions.

The Board configuration dialog shows the maximum number of licensed voice channels. These voice channels are used by the function ’Networking via Voice over IP lines’ (see document 366/15534-ASB150 02) as well as by the IP-Extensions.

Note

Any modification in this dialog, requires a restart of the IPU

Trunk Individuals |  |

Not relevant for the IP-Extension

IP-Extension Individuals |  |

In contrast to the number of trunk individuals which might be equal to or lower than the number of available voice channels, the number of IP-Extension individuals can be set up to a maximum of 128 extensions.

Valid data: 0, 16, 32 (default), 48, 64, 80, 96,112, and 128.

Note

The maximum number of voice channels on the IPU is limited to 16 voice channels.

IP-Extension threshold |  |

As the number of voice channels has to be shared between the networking and IP-Extension traffic, it is necessary to define a maximum number of simultaneous IP-Extension calls.

Valid data: 0-4, 0-8 or 0-16 (depends on the number of available voice channels); 8 (default)

### IP Extension data

5601 |  | Extension directory number

0172 |  | Fixed diversion destination for internal calls, if cordless/IP-Instrument is not available

0173 |  | Fixed diversion destination for external calls, if cordless/IP-Instrument is not available

0188 |  | Voice transmission quality

0701 |  | Registration password

0702 |  | Client IP address

## Maintenance

Note

By pressing C+#+’mute’ simultaneously for at least one second the Dialog 3413 is rebooted as soon as the keys are released.

The following maintenance activities are applicable for the IP-Extension function:

1. IPU- Firmware upgrade
   see document Maintenance instructions,
   1541-ASB 150 02 Uen.
2. Registration of a temporary or upgrading of a final voice channel license, see document
   Maintenance instructions,1541-ASB 150 02 Uen.
3. Backup Management of the Gatekeeper’s registration table
4. Supervision of the Extension-Gateway table
5. Supervision of the IP-Extension registration table

##### Access to the maintenance function 3,4 and 5

1. Connect BMS to the system
2. Select System in the tree view and open its subtree
3. Select System parameters and open its subtree
4. Select IPU board data
5. Select the Gatekeeper Tab in the ’Basic data’ dialog
6. Select one of the desired maintenance functions by using the buttons ’Backup Management’, ’Extension Gateway table’ or ’IP-Extension table’

### Backup Management of the Gatekeeper’s registration table

The backup function prevents that all IP-Extensions are out of order after a system restart or a restart of the Gatekeeper’s IPU, as all the entries in the Gatekeeper’s registration table will be deleted.

For further details see Chapter Restart situations.

#### Backup enabled

This command defines whether or not the backup function of the Gatekeeper‘s registration table is enabled. If the backup function is enabled, a backup process will be started every 30 minutes. If the backup function is disabled, all IP-Extensions have to re-register themselves after a system or a board restart, in order to be active again.

##### Valid data: Yes (default), No

#### Immediate Backup

By pressing the ’Submit’ button the backup process will immediately create/update backup files on the Compact Flash card with the content of the current Gatekeeper‘s registration table, independent of whether the Backup function is enabled or disabled.

Note

Before removing the IPU board in case of service purposes, it is recommended to initiate an update of the backup files on the Compact Flash Card by pressing the ’Submit’ button in order to have the latest Gatekeeper‘s registration table status stored.

### Supervision of the Extension-Gateway table

The Extension-Gateway table provides information about all Extension-Gateways registered to the Gatekeeper

# |  | Serial number of the registered Extension-Gateway |
GW IP-address |  | Address of the IPU on which the Extension-Gateway and its assigned IP-Extensions are configured. |
Q.931 port |  | TCP-port where the Extension-Gateway is listening for Q.931 (H.225) connections to exchange call signalling messages |
RAS port |  | UDP-port where the Extension-Gateway is listening for RAS (H.225) messages |
Status |  | C (Confirmed) Indicates that the Extension-Gateway has registered itself to the Gatekeeper in a correct way. Empty An empty status field indicates that this Extension-Gateway has registered at the Gatekeeper, but is currently not connected. This situation occurs when the IPU is in shut-down state or has been temporarily removed for service purpose. If the Extension-Gateway does not register to the Gatekeeper again within 24 hours it will be removed from the table. |
ID |  | Endpoint Identifier according to the H323 standard definition. A unique identifier within the Gatekeeper zone. |

### Supervision of the IP-Extension registration table

The IP-Extension registration table provides information about all reported IP-Extension from the Extension-Gateways, as well their current registration status.

# |  | Serial number of the reported IP-Extension |
GW IP address |  | IP-address of the Extension-Gateway to which the IP-Extension is assigned. |
Status |  | Status of Gatekeeper registration: C (Confirmed) Indicates whether or not the Extension-Gateway, where the IP extension is assigned to, is up and running. A reason for not being confirmed can be that the board where the Extension-Gateway application is located is in shut down state or temporarily removed for service purposes. If the Extension-Gateway does not register the IP-Extension again within 24 hours, it will be removed. R (Registered Indicates whether the terminal is registered via RAS (H.225) for the defined directory number (DirNo) |
Terminal |  | Type of registered IP-Extension DBC 413 NetMeeting BackStage H323 |
Client IP |  | IP-address of the IP-Extension’s terminal or PC-client |
Q.931 port |  | TCP-port where the IP-Extension’s terminal or PC-client is listening for Q.931 (H.225) connections to exchange call signalling messages. |
RAS port |  | UDP-port used on the IP-Extension’s terminal or PC-client listening for RAS (H.225) messages |
DirNo |  | Directory number of the IP-Extension defined by command 5601 |
ID |  | Endpoint Identifier according to the H.323 standard definition. A unique identifier within the Gatekeeper zone. |

## Equipment/Environment

### Central Software

The IP-Extension function is supported by
ASB 150 02 R13 or higher systems.

In order to have access to the function, a proper FECU must always be plugged-in on the CPU-D4, see Facility Description – General (155 34-ASB 150 02 Uen), chapter “Functionality Of
ASB 150 02 With/Without Connected FECU”.

### IPU board

In order to set-up IP-Extensions, the system has to be equipped with an IPU board.

#### Licensed voice channels

The number of available voice channels on the IPU board will be defined by a license file which is located on the Compact Flash card. The Compact Flash card itself will be plugged on the IPU.

For detailed description about the IPU licensing, refer to document Maintenance instructions,
1541-ASB 150 02 Uen.

For a detailed description of the license ordering process see Order information ’BusinessPhone Communication platform ’,113 62-11/ASB150 02

#### Supported voice channels

Apart from the Compact Flash card, the IPU has to be equipped with a DSM submodule in order to support the voice channels. One DSM submodule supports 16 bi-directional voice channels.

Article number | Function
ROA 219 5114/1 | DSM1 16 bi-directional voice channels in conjunction with the G.711 voice codec. If the G.729 Annex A (with Annex B) or G.723.1 voice codecs are used, only 8 bi-directional channels are supported.
ROA 219 5114/2 | DSM2 16 bi-directional voice channels, independent of used voice codec.

### Prerequisites to the customer‘s LAN environment

In order to install IP-extensions in the customer’s LAN, the following prerequisites have to be fulfilled.

- LAN environment
  ASB 150 02 provides an interface to an Ethernet 10BaseT/100BaseTX autosense LAN environment according to IEEE-802.3 for half- and full duplex operation.
- TCP/IP (IP Version 4)
- Bandwidth
  In order to avoid speech delay variation or conversation interruption (due to packet loss) the traffic situation on the LAN segments used for the VoIP lines should be analysed. Depending on the selected voice transmission quality, a certain bandwidth will be occupied per voice call. See ’Codec/Bandwidth and packet size table’ in document Networking via Voice over IP lines (366/15534-ASB150 02)

### Prerequites to the IP-Extensions

#### Dialog 3413

See chapter Installation/Programming of Dialog 3413

#### Microsoft® Netmeeting

##### Minimum Hardware Requirements

- Pentium 90 MHz
- 14 MB harddisk Space
- 32 MB RAM
- Full Duplex Audio Hardware

##### Minimum Software Requirements

- Windows 9x
- Windows Me
- Windows NT 4.0 Service Pack 3
- Windows 2000
- Windows XP

## Glossary

Term | Explanation
10BaseT | LAN-standard for 10Mbit/s networks using twisted pair cabling (2pairs).
100BaseTX | LAN-standard for 100Mbit/s networks utilizing 2 pairs of data grade category 5 unshielded twisted pair (UTP) and shielded twisted pair (STP) cabling. 1 pair is used for data transfer, the other pair is used for collision detection
CAT 5 | Category of a UTP LAN cable which is used for data transfer up to 100MHz (including 100BaseTX and ATM 155Mbps)
Codec | Compression/decompression. An overall term for the technology used in digital video and digital audio.
DHCP | Dynamic Host Configuration Protocol. A TCP/IP protocol allowing the principal parameters of network devices (including IP addresses) to be configured by central DHCP servers. DHCP's purpose is to enable individual computers on an IP network to extract their configurations from a server (the 'DHCP server') or servers, in particular, servers that have no exact information about the individual computers until they request the information. The overall purpose of this protocol is to reduce the work necessary to administer a large IP network. The most significant piece of information distributed in this manner is the IP address.
DSM | Digital Signal Processing Module
Ethernet | A high-speed local area network (LAN), consisting of a cable technology and one or more sets of communication protocols. Developed by the Xerox Corporation, Ethernet is based on the IEEE 802.3 standard and uses the carrier sense multiple access with collision detection CSMA/CD method to control access to the transmission medium.
GKDP | Gatekeeper Data Protocol. Proprietary protocol between ASB 150 02 Gatekeeper and Extension-Gateway
IP address | A unique, 32-bit number for a specific TCP/IP host on the Internet. Usually printed in decimal form (for example, 128.122.40.227)
H.225 | ITU-T standard. Call signalling protocol and media stream packetization for multimedia communication system.
H.245 | ITU-T standard. Control protocol for multimedia communication.
H.323 | ITU-T standard. Packet-based multimedia communication system.
LAN | Local Area Network. A LAN is a group of computers and other devices which are connected by communications link, allowing the devices to interact on the shared network. It is confined to a small geographical area that does not use long-distance carriers, such as telephone connections. The area is usually limited by the cable length restrictions of the transportation media being used. LANs allow users to communicate and to share resources, such as hard disk storage and printers. A LAN is user-owned and does not run over leased lines, although it can have gateways to the PSTN or other private networks.
MAC address | A MAC address (also called an Ethernet address or an IEEE MAC address) is a number (typically written as twelve hexadecimal digits, 0 through 9 and A through F, or as six hexadecimal numbers separated by periods or colons, i.e. 0080002012ef, 0:80:0:2:20:ef) which uniquely identifies a computer that has an Ethernet interface. Unlike the IP number, it includes no indication of where your computer is located.
Q.931 | ITU-T standard. Describes call signalling.
Subnet | A portion of a network that may be physically independent of another network portion, but both portions of the network share the same network address, and the portion is distinguished by a subnet number. The subnet number is a portion of the Internet address that designates a subnet. It is used for Intranet routing but is ignored for Internet-routing purposes.
Subnet mask | The bits of an IP address used for a subnetwork.
RAS | ITU-T standard. Describes call signalling.
TCP | Transmission Control Protocol A connection-oriented protocol in Layer 4, that ensures that the data will arrive in the correct order. A connection is set between two communication devices to send and receive data. If this data is out of order, TCP reorders the information. If the expected information has not been received, it is requested again.
UDP | User Datagram Protocol. UDP acts parallel to TCP in Layer 4 and provides a connectionless datagram delivery service between IP host applications. Connectionless means that the protocol in the end device indicates whether data packets were lost on the way. UDP avoids the overhead of reliable data transfer mechanism by not protecting against datagram loss or duplication. For some applications, such precision is not necessary. Voice is an example. In a voice transmission, if one or two bits are wrong, the conversation will not become unintelligible. Even if an entire datagram is lost, the people at the ends can repeat themselves, and in that way recover the lost information. For these reasons, as well as the greater simplicity of UDP as compared to TCP, VoIP applications primarily use UDP.
UTP | Unshielded twisted pair cable

Revision: PC1 © Ericsson Enterprise 2003