Simple transfer or conference

Last Updated : Sep 08, 2012 |

This scenario describes a simple transfer or conference call scenario.

When an incoming trunk or station call is received by the station user at Phone I and transferred to or conferenced with another station user or outside party:

  1. The communication server creates a UCID for the incoming call if it needs one.

  2. The communication server creates a new UCID for the temporary conference or transfer portion of the call.

  3. The communication server merges the temporary portion of the call with the original call when the conference or transfer is completed within the communication server. This is when the overriding UCID (such as UCID a), becomes the UCID for all parties within the communication server.

    Note:

    If the outgoing trunk does not support the sending of UCIDs, then the UCID of the outgoing call at the receiving communication server will be null.

If the call is transferred to another communication server, only the UCID for the transfer (UCID b) gets passed on. This is because the communication server cannot merge UCIDs if the call is not completed within the communication server.

Note:

If, during the conference or transfer, the incoming call drops before the operation is complete, the two UCIDs will not appear to be associated because no merge of the two parts of the call was done.