Cisco Systems OL-11591-01 manual Call Routing, 12-5

Chapter 12 IP Video Telephony Configuration

Call Routing

Table 12-2	IP Video Telephony Call Type Matrix
									PSTN
				SCCP					Cisco
	Third	Third	Cisco	Cisco		SCCP	H.323		Unified
	Party	Party	Unified	Unified	SCCP	MCU	MCU	PSTN	VIdeo-
	SCCP	H.323	IP Phone	Video	Audio	Confer-	Confer-	Gate-	confer-
	Endpoint	Endpoint	7985	Advantage	Only	ence	ence	ways	encing
Third Party	V	V	V	V	A	V	V	A	V
SCCP
Endpoint
Third Party	V	V	V	V	A	V	V	A	V
H.323
Endpoint
SCCP Cisco	V	V	V	V	A	V	V	A	V
Unified
Video
Advantage
SCCP	A	A	A	A	A	A	A	A	A
Audio Only
SCCP MCU	V	V	V	V	A	V	V	A	V
Conference
H.323 MCU	V	V	V	V	A	V	V	A	V
Conference
PSTN1	A	A	A	A	A	A	A	A	A
Gateways
H.225 Trunk	V	V	V	V	A	V	V	A	V
SIP Trunk	V	V	V	V	A	V	V	A	A

1. PSTN = public switched telephone network.

Note Cisco Unified CallManager 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 Cisco IP 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

	System Test Architecture Reference Manual for IP Telephony
OL-11591-01		12-5