Our application is generating DTMF on answer of the call. If we are making call from PSTN and SCCP devices then DTMF digits are heard by other end but if we are making call from 9971 which are not observed (not in cucm app user) then DTMF digits are not heard.
Are you seeing any errors in regards to that in the Jtapi/CUCM logs?
Regards,
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