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(draft 1)

An interface for channels that can be made conceptually part of a Conference1, and can then be detached from that conference.

This interface addresses part of freedesktop.org bug #24906 (GSM-compatible conference calls). GSM is currently the only protocol known to implement this; PBXs might implement it too.

Request that this channel is removed from any Conference1 of which it is a part.

This implies that the media streams within the conference are put on hold and the media streams within the member channel leaving the conference are unheld.

This channel isn't in a conference. This channel is in a conference but can't currently be split away from it.