Cisco Bug: CSCur11416 - Special data calls RTP, need bit level effectiveness
May 05, 2016
- Cisco 2900 Series Integrated Services Routers
Known Affected Releases
Symptom: Bit error reported by BERT device, while verifying the media established. Conditions: For VOIP calls, due to clock drifting/Jitter the GWs (no matter which brand) had to correct the latency or delay by removing or inserting voice data. That means the other GWs which have lower bit-errors may not be good for voip calls. Or to say, it has long delay which may damage the conversation quality. The Cisco voice gateway DSP's modify the bits in frames to correct the delay in transmission, which caused the bit errors though the call set in Clear channel codec. Enhancement:- To configure the gateway/IOS/DSP for these special calls, that it won't modify the data/RTP frames coming in, as a part of latency, clock drift or Jitter correction.
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