Can you confirm that you know the codec is G711 from looking at the audio stream and not from the device pool/region configuration?
If you have not done so, I would double tap the ? button on the phone (if a 7911G has one) or browse to the phone IP address and look at the stream details. This will confirm, not the configured codec, but the actual codec in use.
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I did not mention in the first message, but I am using already G711. I changed Call Manager to G722 disabled, and also double clicked "?" in the 7970 phone making the calls to see G711u was being used. I took a wireshark trace in the CAD and it decodes RTP packets as G711u, then I think it is working. Unfortunatly, wireshark is not able to detect and VoIP Call in the SCCP call, and then can not save the RTP packets as .wav file to be fully sure it is the correct flow.
Thanks for your help, but I'm afraid it is not the problem.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.