When you have centralized UCM and 17 remote sites:
Do you need a local transcoder (ie local voice gateway) to handle the transcoding or can this be done
by a remote device (ie. UCM or remote voice gateway). How does the transcoding process work based on having to go back and forth across the WAN to the UCM to do the transcoding? Doesn't it make sense to have it locally?
Currently we have the UCM as the MTP transcoder. At what point do we want to use the local gateway and only use the UCM as a failover?