af431fc3_r_Voice_Conferencing___DocWiki__Action
[Field] Device Pool [Action] 
If no device pools are defined, select Default. If device pools are already defined, then either create a new device pool or choose an existing device pool for a region with a codec that is compatible with the conferencing gateway (or bridge).
Cisco Unified MeetingPlace, Release 7.0 -- How to Configure Call Control for Voice Conferencing - DocWiki