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Call between a SIP phone and a remote one through H.323 trunk doesn't resume after putting on hold


I have configured an H.323 trunk between an Avaya (that don't support SIP) and a CME. As the trunk goes through a WAN link I am using G729 codec for this trunk. The phones I am using in the CME side are 7841 with G711 codec. The CME has transcoding configured. Currently I am able to make calls between both sides in both ways and the audio works fine. However, when I put the call on hold in the 7841 and resume the call, the call remains up but the audio stops passing through. That doesn't happen if I configure the 7841 phones with G729 codec. It seems the problem is due to the use of transcoding. Do you know a way to make this feature (hold) work in this situation?



Cisco Employee

pls post sh run below logs

pls post sh run 

below logs:

deb h225 asn1

deb h245 asn1

deb voip ccapi inout

below sh command when on hold

sh sccp conn

sh voip rtp connec

sh call active voice br (run this multiple times when on hold)

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