AdminGuide:Service:Blind Call Transfer

Return to AdminGuide:Service

Blind Transfer

Description

This service allows a user (transferer) to directly transfer a call with a third party (transferred) to another PBX user. When blind transfer is used, the transferer loses control over the call as soon as they begin the transfer.

If the addressee of the blind transfer does not answer the call (busy, not available, not registered), the failover action set for that specific extension in the Extensions page is executed.

The default failover action for a blind transfer is Return to transferer: the call is returned to transferer and the prefix "R:" is added to the CallerID to notify that it is a return of a call transfer.

As for every on-call service, blind transfer requires Direct Media to be disabled for the ongoing call. If Direct Media is enabled, a blind transfer can be executed by pressing the specific function key made available by the specific phone model.

A blind transfer is performed by dialing the configured on-call service code (by default #4).
KalliopePBX will play audio instructions and ask for the extension number of the addressee.
The transferer will then dial the desired extension number and press the # key or wait for default timeout (2 seconds).
In the meantime, the transferred party will hear the hold music configured in the Music on Hold page.
When the addressee answers, they will immediately begin conversation with the transferred party, and the blind transfer will be complete.

Configuration

The service can be enabled/disabled in the PBX -> On-call services page.

The blind transfer service code can be specified in the PBX -> On-call services page.