BusinessPhone Communication Platform 7.0
Facilities

## ISDN SS Hold

## Definition

The supplementary service HOLD enables the S‑Interface user to put a call on hold and retrieve the call from hold.

## Use

The S-Interface user can put a call on hold and retrieve the call from hold, thus if the user starts a secondary inquiry call then the primary call is automatically put on hold respectively retrieved from hold.

For the primary held call and the secondary inquiry call are two separate trunk individuals utilized (on the same S‑interface).

## Operation

See User Guide of the ISDN terminal.

## Capacity/Limitations

The supplementary service Hold is stand-alone provided, i.e. the feature is not supported to remote users in public or private ISDN. However if the ’remote user’ is another S-interface user then information signalling (hold/retrieved from hold) will be provided.

## Programming

See User Guide of the ISDN terminal.

## Equipment

BTU-B_ or MFU.

Revision: M © Ericsson Enterprise 2005