Cisco Bug: CSCum06154 - TC 5.1.7 Doesn't Understand Progress Message from VCS

Last Modified

Aug 26, 2014

Products (1)

Cisco Telepresence Integrator C Series

Known Affected Releases

5.1.7

Description (partial)

Symptom:
Call being disconnected by the EX90 after 18 Seconds.
EX90 is dialing outbound using the following call flow:

EX90 <H.323> VCS <SIP> CUCM <MGCP> Gateway <PRI> Provider.

If the call goes outbound SIP from the EX90 the call will complete.
If the call goes outbound H.323 from the EX90 the call will fail.

Conditions:
Calling outbound H.323 (TC5.1.7) where the Alerting Message is not being received with a 15 to 18 Second Window and the EX90 is disconnecting the call.

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