Sunday, November 6, 2011
Music on Hold SRND
I'm currently going through the best practices section regarding music on hold (MoH) using unicast, multicast, or both to stream audio media. This section also covers best practices depending on your network environment, such as competently centralized VoIP network, multi-site network with centralized call processing, our multi-site network with multiple clusters.
In my current work environment we currently use unicast for MoH and our environment has centralized call processing with multiple remote sites. We actually used to use multicast for MoH because it's obviously more efficient but we ran into a Cisco Call Manager bug with our previous version 7.x. We have since upgraded to 8.X but whatever TAC engineer we were working with recommended unicast over multicast when possible. Seems as if the SRND says otherwise, again for obvious reasons.