12-5
System Test Architecture Reference Manual for IP Telephony
OL-11591-01
Chapter12 IP Video Telephony Configuration Call Routing
Note Cisco UnifiedCallManager 5.1 supports security on the Cisco Unified IP Phone 7940G/7941G/7960G/
7961G/7970G/7971G running SCCP. These phone models also have video capabilities when associated
with Cisco Unified Video Advantage. If two secure video-capable endpoints call each other, the SCCP
signaling and audio media path will be encrypted. Video will work, however signaling and the video
media path to Cisco Unified Video Advantage will not be encrypted.
Call Routing
The IP Video Telephony deployment supports the following call routings. SCCP endpoints include
SCCP Tandberg T1000, and Cisco Unified Video Advantage associated with CiscoIP Phone models
7940G/7960G/7970G. H.323 endpoints include H.323 Tandberg T1000 and Polycom VSX 7000.
•SCCP endpoint > Cisco Unified CallManager > SCCP endpoint
•H.323 endpoint > Gatekeeper > Cisco Unified CallManager > SCCP endpoint
•SCCP endpoint > Cisco Unified CallManager > Gatekeeper > H.323 endpoint
Table12-2 IP Video Telephony Call Type Matrix
Third
Party
SCCP
Endpoint
Third
Party
H.323
Endpoint
Cisco
Unified
IP Phone
7985
SCCP
Cisco
Unified
Video
Advantage
SCCP
Audio
Only
SCCP
MCU
Confer-
ence
H.323
MCU
Confer-
ence
PSTN
Gate-
ways
PSTN
Cisco
Unified
VIdeo-
confer-
encing
Third Party
SCCP
Endpoint
VVVV AVVAV
Third Party
H.323
Endpoint
VVVV AVVAV
SCCPCisco
Unified
Video
Advantage
VVVV AVVAV
SCCP
Audio Only AAAA AAAAA
SCCP MCU
Conference VVVV AVVAV
H.323 MCU
Conference VVVV AVVAV
PSTN1
Gateways
1. PSTN = public switched telephone network.
AAAA AAAAA
H.225 Trunk VVVV AVVAV
SIP Trunk VVVV AVVAA