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Cisco Bug: CSCub18358 - [PI21] Montage2: SIP BAD PAIR Message seen in a CTS call

Last Modified

Apr 25, 2020

Products (1)

  • Cisco IOS

Known Affected Releases

15.3TPI21

Description (partial)

Symptom:
%SIP-3-BADPAIR: Unexpected event 21 (SIPSPI_EV_CC_CODEC_LOCAL_DNLD_DONE) in
   state 14 (STATE_SENT_ALERTING) substate 0 (SUBSTATE_NONE)

Conditions:

This BADPAIR error is seen for a SIP-SIP transcoded DO call on in-leg
   with the call-flow having 180 Ringing followed by 183 with offer SDP
   and PRACK with answer SDP.
   Error is seen after receiving PRACK with answer.
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  • Full Description (including symptoms, conditions and workarounds)
  • Status
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