Cisco Bug: CSCuq10394 - Cube Invalid Payload type for CN / non compliance with RFC 3389
Last Modified
Nov 27, 2020
Products (1)
- Cisco 2600 Series Multiservice Platforms
Known Affected Releases
n/a
Description (partial)
Symptom: The Cisco CUBE / IOS Gateway uses an incorrect and obsolete payload 19 for Comfort Noise : m=audio 19464 RTP/AVP 0 19 The mandate Payload type for Comfort noise is 13 .Pls refer to section 5.1 of RFC 3389 "usage of SDP" : " When using CN with the RTP/AVP profile [10] and a codec whose RTP timestamp clock rate is 8000 Hz, such as G.711 (PCMU, static payload type 0), the static payload type 13 for CN can be used: m=audio 49230 RTP/AVP 0 13 " http://tools.ietf.org/html/rfc3389 Conditions: The Cisco CUBE / IOS Gateway uses an incorrect and obsolete payload 19 for CN : m=audio 19464 RTP/AVP 0 19 The mandate Payload type for Comfort noise is 13 .Pls refer to section 5.1 of RFC 3389 "usage of SDP" : " When using CN with the RTP/AVP profile [10] and a codec whose RTP timestamp clock rate is 8000 Hz, such as G.711 (PCMU, static payload type 0), the static payload type 13 for CN can be used: m=audio 49230 RTP/AVP 0 13 " http://tools.ietf.org/html/rfc3389
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