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Cisco Bug: CSCub05477 - TS failed to send SIP messages after receiving a large SIP payload

Last Modified

Apr 14, 2017

Products (1)

  • Cisco TelePresence Server

Known Affected Releases


Description (partial)


TelePresence Server fails to register to SIP registrar or make calls with the following errors;

- "failed to send SIP message: REGISTER"
- "failed to send SIP message: INVITE"

The "failed to send SIP message" errors always follow a "SIP message too large" error.


When receiving a SIP payload size greater than 8192 bytes, this stops SIP TCP packets from being sent.
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