Cisco Systems 3545 PRI PRI Gateways, 1-10, Private, Public, PRI T1/E1, Central office switch

Chapter 1 Functionality

About Cisco Unified Videoconferencing 3545 Gateway Applications and Topologies

PRI Gateways

You can connect the PRI gateway directly to a PRI line provided by your local ISDN provider (as shown in Figure 1-4), or to a local private branch exchange (PBX) that provides the PRI connection (as shown in Figure 1-5).

Figure 1-4 Connecting the PRI Gateway Directly to a Central Office Switch

	Private	Public
	IP
	network
H.323		PRI T1/E1
Terminal
	Cisco Unified
	Videoconferencing
IP	3545 chassis with
	Gateway modules
IP phone

Central office

switch

281207

Figure 1-5 Connecting the PRI Gateway to a PBX that Provides a PRI Line

Private Public

H.323 terminal

IP phone

IP

IP network

Cisco chassis/unit

PRI T1/E1
Cisco Gateway	PBX

Central Office

switch

157167

Private Public

H.323 terminal

IP phone

IP

IP network

Cisco chassis/unit	Central Office
	switch
	BRI
Cisco Gateway	PBX
	157166

	Installation and Upgrade Guide for Cisco Unified Videoconferencing 3545 PRI Gateway and 3545 Serial Gateway Release 5.6
1-10	OL-17011-01