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Cisco Bug: CSCsz20340 - One-Way Video with H.263 RFC2190 packets

Last Modified

Feb 02, 2017

Products (1)

  • Cisco 2800 Series Integrated Services Routers

Known Affected Releases

12.4(15)T8 12.4(20)T1

Description (partial)

Symptom:

Topology
=========

Polycom_A----MCU---GK---H323GW--(PRI)---Telco----Polycom-B
                               |
                               |
                         CCM-----Phone(VT)

Call scenarios
==============
All internal video conferences with Codec H263 via MCU are working fine.

However, customer experience no video issue when the external
Polycome(B) join the conference via PRI with Codec H263 on H323GW. But, Audio works fine on both remote and local video endpoint.

Additionally, customer does not experience any issue with codec H261.
They only experience issue when codec H263 being used for the call.

Non-working codec: H263 and H263+
Working codec: H261


Conditions:
ISDN Video call with codec H263 or H263+
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