Refer to the exhibit. Calls to Cisco Unity Connection are failing across Cisco Unified Border Element when callers try to select a menu prompt. Why is this happening and how is it fixed?
Refer to the exhibit. Calls to Cisco Unity Connection are failing across Cisco Unified Border Element when callers try to select a menu prompt. Why is this happening and how is it fixed?
The issue described in the question is related to the failure of DTMF (Dual-Tone Multi-Frequency) signaling, which is critical for navigating menu prompts. The Session Description Protocol (SDP) displayed in the INVITE does not indicate support for DTMF through telephone-event payloads, which would be necessary for transmitting DTMF signals. Therefore, the Cisco Unified Border Element must be configured to support DTMF by adding it to the appropriate dial peer configuration.
• C. Cisco Unified Border Element is not sending any support for DTMF. DTMF configuration must be added to the appropriate dial peer: Correct. If the Cisco Unified Border Element (CUBE) is not properly configured to handle DTMF signals, the digits pressed by callers will not be transmitted to Cisco Unity Connection, causing the menu prompts to fail.
In the INVITE there isn't any DTMF allowed, so the DTMF will not work. This is the issue.
In the INVITE there isn't any DTMF allowed, so the DTMF will not work. This is the issue.
Anyone has a explenation for this question?
Yea, there’s no attribute for DTMF m = audio 35904 RTP/AVP 8 101 a = rtpmap:8 PCMA/8000 a = rtpmap:101 telephone-event/8000 101 being the DTMF attribute ETC