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Cisco Bug: CSCvv87246 - B2BUA stripping Reason header in SIP 183

Last Modified

Oct 12, 2020

Products (1)

  • Cisco TelePresence Video Communication Server Software

Known Affected Releases

X12.5.9

Description (partial)

Symptom:
MRA registered device hears ringback tone rather than busy tone

Conditions:
CUCM sends 'Reason: Q.850 ;cause=17' in the SIP Header.
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