ABSTRACT: GR-2965 provides the view of Telcordia on the generic requirements for ISDN PRI to support Multi-B-Channel Conferencing for speech and 3.1KHz audio calls.

This feature allows ISDN PRI users to invoke a conference call, add calls (either from the same interface or from a different interface) to a conference, drop a party from the conference, or transfer a conference call. It allows multiple B channels to be used at one time for establishing calls related to the conference call without having to hold the conference call.