MOH in CM and CME

Posted by Andy on May 5, 2009

Music on Hold

While Unified CM can be enabled to stream MoH in both G.711 and G.729 formats, Unified CME streams MoH only in G.711 format. Therefore, when Unified CME controls the MoH audio on a call placed on hold, it requires a transcoder to transcode between a G.711 MoH stream and a G.729 call leg.

via Cisco Unified Communications SRND Based on Cisco Unified Communications Manager 7.x – Call Processing  [Cisco Unified Communications Manager (CallManager)] – Cisco Systems.


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