I may be off on this but check if you are using codec complexity of high or medium. Here is some info that I have copied and pasted here: When reading, note that PVDM 12 can be used for up to 12 calls.
In high-complexity codec mode, up to six voice or fax calls can be completed per PVDM-12, using the following codecs: G.711, G.726, G.729, G.729 Annex B, G.723.1, G.723.1 Annex A, G.728, and fax relay.
In medium-complexity codec mode, up to 12 voice or fax calls can be completed per PVDM-12, using the following codecs: G.711, G.726, G.729 Annex A, G.729 Annex B with Annex A, and fax relay.
SIP traces provide key information in troubleshooting SIP Trunks, SIP
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clear text, these texts can be gibberish unless you understand fully
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Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
questions and it will render the proper jabber-config.xml file for you
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CUCM Database Replication is an area in which Cisco customers and
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