I always come across this question and could not find the real answer.
1. When do we need to have MTP or Transcoding resources dedicated to Callmanager cluster. I have an environment, consisting of different Callmanager clusters and Voice gateways with PSTN / PBX trunks. I have combination of codecs (regions with g711 and g729) and everything works with out Transcoding. Do not really know when do I need transcoding resources. Atleast I never had to convert G729 to G711 vice versa.
2. When is the time I need to use high complexity codec ? On the voice gateway, I can define codec complexity to either high / medium / flex. To get higher MOS score we need to use high complexity codec ?
May be dumb questions, but bothers me ..