BusinessPhone Communication Platform 7.0
Facilities

## Call List

## Definition

The call list enables an authorised user of a system telephone to store up to 20 calls (internal and external, answered and unanswered).

The Call list is an enhancement of the ISDN caller list

## Use

By storing even unanswered calls in the system, e.g. in case of no answer or busy, this function will ensure that no incoming calls to system telephones will be missed.

Via the telephone the following activities can be performed when calls are stored in the call list:

- Read-out of the number of calls
- Scrolling through the call list
- Calling the stored numbers in the call list
- Read-out of time and date of calls
- Read-out of the number of attempts for an incoming call
- Erasing of calls from the call list

## Operation

If calls are stored in the call list, the user can scroll through the list in order to decide which number he/she wants to call back. The numbers are stored chronologically according to their arrival.

If the list is full, each further call will delete the oldest call in the list (first in-first out-principle).

Callers which are calling several times are stored in the call list as a single entry, with the latest arrival time and a counter showing the number of call attempts.

### Storage criteria for incoming calls

- The minimum ringing time at the extension must be more than 3 seconds.
- The calling party number must be provided.
- The extension must be the first call destination in the system. (Already answered and transferred calls are not stored in the call list)
- If the desired extension has activated a call diversion (follow me, direct, busy or no reply), an incoming call is only stored at the diverting extension if the diversion address does not answer the call. The minimum ringing time at the diversion address must also be more than 3 seconds.
- If the desired extension does not answer within the trunk reroute timeout, the incoming call is stored in the call list independent of whether or not the call will be answered by the reroute position of the trunk.
- If the desired extension is busy, the incoming call is stored in the call list independent of whether or not the call will be answered by the reroute position of the trunk.

### Storage principle

1. In case of an incoming ISDN call using numbering plan E164, the following call number types can be received for the calling party in the call set-up message.

- Unknown
- National
- International
- Network specific
- Local directory

- If the received calling party number is of type “national” or “international”, the calling party number has to be complemented with the respective prefixes stated in commands 1936 and 1937 and stored in the call list.
- Calls covering other call number types than “national” or “international” are stored as they are received.

1. All non-ISDN (e.g. internal, network) incoming calls are stored as they are received

### DBC 223, DBC 213 and DBC 662 Telephone

The number of calls in the list are indicated on the display, see examples below

1 received call

8 received calls

#### To display the first entry in the call list

- Press list.

The display shows the first entry in the call list:

[<- ... incoming call answered

!<- ... incoming call not answered = missed call

[-> ... outgoing call

call: calling the stored number

next: scrolling through the list

time: read out date and time of arrival and number of call attempts

erase: delete stored number

#### Calling the stored number

- Press call to call the selected number.

If no default route number is programmed, the user has to enter the number manually - for external calls. For more information, see Error messages.

#### Scrolling through the list

- Press next to scroll through the list.

#### Read out time of arrival and number of call attempts

- Press time to read out date, time and number of call attempts of the selected call.

#### Delete stored number

- Press erase to erase the selected call.

The next entry in chronological order is shown:

### DBC 222, DBC 212 and DBC 631 Telephone

The number of calls in the list is indicated on your display, e.g. “C20” indicates that 20 calls are stored in the list.

#### To display the first entry in the call list

- Press * 48 #.

The display shows the first entry in the call list:

“L1” |  | calling the stored number

“+” |  | scrolling through the list

“0” |  | read out time of arrival and number of call attempts

“-” |  | delete stored number

#### Calling the stored numbers

- Press Line 1 to call the selected number.

If no default route number is programmed, the user has to enter the number manually. For more information, see Error messages.

#### Scrolling through the list

- Press + to scroll through the list.

#### Read out time of arrival and number of call attempts

- Press 0 to read out date, time and number of call attempts of the selected call.

#### Delete stored number

- Press - to erase the selected call.

The next entry in chronological order is shown:

### Error messages

#### No default route directory number of the currently used extension

The user has to enter the route directory number manually. The number consists of up to 4 digits and is completed by pressing the #-key or the ENTER-key.

This kind of programming can be used for configurations where the user wants to use different routes, e.g. for business and private calls.

If an invalid route directory number is entered, the error message

will be shown.

#### Common error messages

- The last entry in the list was erased or *48# was dialled although the list is empty. |

- Tandem configuration - This message is shown on the display to inform that the other member of the tandem configuration is retrieving the call list. |

- More than 192 extensions are programmed with a call list. |

- A system error has been detected (e.g. timer cannot be triggered). |

- Timeout occurs (Default data: 30 sec.) |

Up to 192 authorised DBC 662, DBC 213, DBC 223, DBC 222 and DBC 212 extensions can the function call list.

Per extension a maximum of 20 entries can be stored in the call list.

## Limitations

- The following telephone types do not have a call list:

- DBC 224, DBC 214 and DBC 663 telephones
- ACD Agent
- ACD Supervisor
- Analog telephone
- Digital telephone types without display

- Tandem configuration:

- For a call list to be assigned, at least one extension – master or slave – must be a DBC 223, DBC 213, DBC 662 / DBC 222, DBC 212, DBC 631 phone, irrespective of whether or not the slave is logged on.

- No call list entries for Group (PBX)-Hunting calls with parallel distribution.
- In the following traffic cases, the number of callers in the call list is not shown in IDLE state:

- Follow me.
- Direct diversion.
- Diversion on busy.
- Extension is an ACD agent.

- Concerning “Diversion direct”, “Diversion on no reply”, “Diversion on busy” and “Follow me”, the calling party number is stored for the first called party.

- If the programmed diversion or follow-me extension answers an incoming call, no storage of the incominig calling party number takes place.

- The maximum number of call attempts which can be shown on the display is 99. Even if there are more than 99 call attempts for one number, only “99” will be shown.
- Disconnecting an authorised DBC 662, DBC 213, DBC 223, DBC 222, DBC 212 or DBC 631 extension, stored calls will be deleted.

## Programming

0178 |  | CallList allowed?

6803 |  | Tenant-Route

1936 |  | Prefix calling number for E.164 number plan with international type of number

1937 |  | Prefix calling number for E.164 number plan with national type of number

## Equipment

DBC 222, DBC 212, DBC 631 or DBC 223, DBC 213, DBC 662 Telephones.

The feature call list is supported by ASB 150 02 R15 or higher system releases.

In order to have access to the feature, the proper licensing concept has to be used, see Facility Description – General (155 34-ASB 150 02 Uen), chapter ASB150 02 Licensing.

Revision: A © Ericsson Enterprise 2005