Unfortunately you need to hardcode codecs on the inbound and outbound dial-peers for the transcoder to be invoked properly by the IOS in most cases; specially when dealing with CUE because with FastStart the media gets negotiated before the CFNA time...
Now, about the difference: there really isn't any from a functional stand point; but if you choose to use a NM there may be additional HW considerations when it comes to PVDM card distribution between the motherboard's PVDM slots and the NMs slots. H...
VIC3 cards can be inserted in both NMs and chassis HWICs. I don't believe you need PVDM3 cards specifically to support them but a recent IOS is required (anything in the 15T should be good). You may want to go through these two links:http://www.cisco...
You can most of the time fix this issue in two ways:1) Hard coding G729 on the inbound dial-peer2) Toggling FastStart/SlowStart on the H323 leg.Do you get this problem when you call directly into the CUE from the CUCM or only when the call gets forwa...
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