Lucent Technologies 555-230-220 manual Terminating Extension Group TEG

ASAI and Feature Interactions

The call state provided to queries about extensions with temporary bridged appearances is “bridged” if the extension is not active on the call or “connected” if the extension is active on the call.

The Third Party Selective Drop request is denied for a temporary bridged appearance that is not connected on the call.

Calls alerting at temporary bridged appearances may be redirected via Redirect Call. In this case the principal and temporary bridge will be dropped if redirection is successful.

Terminating Extension Group (TEG)

Members of a Terminating Extension Group (TEG) may be domain-controlled. A TEG behaves similarly to bridging for the purpose of ASAI event reporting. If controlled stations are members of a terminating group, an incoming call to the group causes an Alerting Event Report to be sent to all domain-control associations for members of the terminating group. On the domain-control association for the member of the group that answers the call, a Connected Event Report is returned to the answering member’s domain-control association(s) that contains the station that answered the call. All domain-control associations for the other group members (nonanswering members without TEG buttons) receive a Call Redirected Event Report. When a button TEG member goes on-hook but the TEG itself does not drop from the call, no event is sent but the state of that party changes from the connected state to the bridged state.

The Disconnect/Drop Event Report is not sent to each member’s domain control associations until the entire TEG drops from the call (as opposed to an individual member going on-hook).

Members not connected to the call while the call is connected to another TEG member are in the bridged state. When the only connected member of the TEG transitions to the held state, the state for all members of the TEG changes to the held state even if they were previously in the bridged state. There is no event report sent over the domain-control associations for the bridged user(s) for this transition.

All members of the TEG may be individually domain-controlled. Each receives appropriate events as applicable to the controlled station. Call Control requests work normally if invoked over the station domain. However, Third Party Selective Hold, Third Party Merge, Third Party Reconnect, and Third Party Selective Drop are not permitted on parties in the bridged state and may also be more restrictive if the exclusion option is in effect from a station associated with the TEG.

Third Party Auto Dial or Third Party Make Call requests cannot specify the TEG group extension as the originator. TEGs can only receive calls, not originate them. A TEG is not eligible for a Single-Step Conference request.

12-54Issue 7 May 1998