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Cisco Bug: CSCvi88320 - Wrong RTP port in SDP

Last Modified

May 03, 2018

Products (1)

  • Cisco IP Phone 8800 Series with Multiplatform Firmware

Known Affected Releases

11.1(2)

Description (partial)

Symptom:
Wrong RTP port in SDP

Conditions:
1. devices in 'dual mode'
2. enable secure calling on the devices , on callee device, configure available RTP ports to be 20 (e.g. 'RTP Port Min' 16384, 'RTP Port Max' 16404).
3. make about 10 basic calls (call/answer/end) to the callee.
4. now make a call to callee, and put it on hold at caller.
5. make one more call to callee - this call likely will not have audio.
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