Communication Manager tandems a Refer-with-replaces SIP message from the transferring party to the transferred party. Communication Manager of the transferred party launches a new call to the transfer target. Communication Manager of the transferred party drops out of the call.

Using the Enhanced SIP Signaling feature, you can:

• see a roster of conference participants

• drop the selected participants from Communication Manager based conferences

• enable audio only conferences, facilitated by Avaya Aura Meeting Exchange 6.2 and audio/video conferences, facilitated by Avaya Aura ® Conference Release 8.0 or Meeting Server 9.1

• enhance the behavior of sequenced applications in a Communication Manager Feature Server environment

During local transfer or conference operations, Communication Manager sends the XML body to the UPDATE SIP message to other SIP parties including the parties of the current call.

This feature consists of four components:

• Tandem in-dialog Refer-replaces and Invite-replaces

• RFC 4579 Conference Factory

• RFC 4579 Conference State Event Reports

• Support for adjunct 4579 Conference Factories