BusinessPhone Communication Platform 4.0
Facilities

## ISDN SS Calling Line Identification Presentation (CLIP)

## Definition

The supplementary service CLIP provides the called party with the possibility to receive identification of the calling party.

## Use

This function makes it possible to identify the caller by means of the national significant number (national destination code + public subscriber number). The A-number will be provided to the STANDARD, EXECUTIVE, OPERATOR telephone, to the cordless phones and to the ISDN terminals on the S-Interface.

## Operation

### Incoming external call

If the A-party’s number is provided by the public network, it will be shown on the display of the above mentioned telephones.

The presentation of the calling A-party number on the ISDN terminal depends on the used terminal type (see User’s Guide).

If the A-party‘s number is not provided by the public net, the display will only show the individual trunk number at an incoming call.

If the A-party’s number is provided by the public network, but the B-party has not subscribed to the supplementary service CLIP, only the individual trunk number is presented at incoming calls.

On the operator telephone also the individual trunk number will be presented.

If the A-party has activated the supplementary service CLIR (Calling Line Identification Restriction, see the following chapter) the A-number is restricted and a special information is presented on the display of the STANDARD, EXECUTIVE and OPERATOR telephone.

How the number suppression will be shown on the ISDN terminal depends on the used terminal type (see User’s Guide).

### Outgoing external call

The public network sends the identification of the calling party (national significant number of the caller´s PBX) to the called party.

ASB 150 02 is able to support the public network with additional information about the calling extension. The identification of the calling extension comprises either the national significant number, the public subscriber number or only the directory number of the calling extension, depending on the configuration.

## Capacity/Limitation

At STANDARD and OPERATOR telephones, only 16 digits of the calling number may be presented.

If the received A-number has more than 16 digits than only the last 16 digits will be presented.

## Programming

1915 |  | Provision of calling line identification

0169 |  | Directory number subscribed in PSTN ?

## Equipment

BTU-D with ISDN prom set or BTU-B_ or MFU.

Revision: H © Ericsson Enterprise 2003