Cisco Bug: CSCsy80185 - DTMF detection needs to be disabled during modem passthru
Jan 31, 2017
- Cisco IOS
Known Affected Releases
Symptom: DTMF detection during a modem pass-through call is causing the DSP to be underrun and the jitter buffers to be resized. This resizing is in turn causing the modems to retrain and data synchronization to be lost during a BERT test. Conditions: Modem pass-t hrough with very small jitter buffers set during the voice call, so that buffers while in modem pass-through remain small and cannot handle any delay in the stream.
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Bug Details Include
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