BusinessPhone Communication Platform 5.1
Facilities

## Voice Mailbox, External

## Definition

An external PC based voice server, e.g. DiscoVoice 5000, can be connected to ASB 150 02.

An analogue extension board is used for connection.

Signalling utilises DTMF.

## Use

An external voice server can be used for several applications.

Below is described solely how a peripheral voice storage system can be connected to ASB 150 02.

For functionality regarding the connected voice system, see user guide for the peripheral equipment.

An extension user can divert calls from her/his telephone to her/his voice mailbox.

On arrival of an incoming call to the extension, the system will divert the call to the directory number of the PBX-Group to which the peripheral voice mailbox is connected.

Using DTMF, the system will then also transmit the called extension's directory number.

In this manner the caller gains connection to the extension's mailbox.

## Operation

### System Telephones

#### Indication that message is waiting

When a message exists in the voice mailbox, the lamp of the programmed key lights and flashes rapidly.

#### Retrieving from the voice mailbox

A call is initiated by pressing the programmed key.

If all connections are busy, busy tone will be heard.

When the last stored message in the mailbox has been erased, the relevant lamp on the telephone extinguishes.

#### Message waiting indication within a CN

The feature CN “message waiting indication” is based on the usage of ISDN supplementary service UUS for supporting proprietary CN functionalities in ASB 150 02.

The usage of a centralised voice mailbox is based on the proprietary CN services line identification and call diversion.

The centralised voice mailbox can only be located in an ASB 501 node.

For more information regarding Corporate Networking, see Networking (365/155 34-ASB 150 02 Uen).

## Capacity/Limitatons

The capacity of the voice storage unit and the number of concurrent connections is determined on the basis of the prerequisites for the voice storage system.

ASB 150 02 must possess the same number of analogue extension positions as number of ports in the voice storage system.

From the traffic aspect the connections of the voice mailbox should be distributed among several ELU-A boards for systems with heavy traffic.

System Telephones can have a lamp for a voice mailbox.

To turn on and off the message lamp on a system telephone the following DTMF-codes are used and which the connected voice system must be capable of sending.

Turn on lamp: *92* directory number # |  |

Turn off lamp: #92* directory number # |  |

### Diversion philosophy

## Programming

### Programming for the Voice Mail server

0301 |  | Function of programmable key

Enter function = 34

Following commands are only accessable via BMS:

5402 |  | Create Group

3401 |  | Assigning members to a group

3071 |  | External voice mail indication

2023 |  | External voice mail directory number

0125 |  | Voice mail extension?

0143 |  | Line break for ELU-A

### Programming for Automated Attendant

0121 |  | DTMF to instrument?

0125 |  | Voice mail extension?

0143 |  | Line break for ELU-A

### Programming for CN

2071 |  | ISID of external voice mailbox

## Equipment

ELU-A board for connection of the external voice server.

Revision: I © Ericsson Enterprise 2003