1-18
Administrator’s Guide for Cisco IPVC 3521 BRI Gateway, Cisco IPVC 3526 PRI Gateway, and Cisco IPVC 3540 PRI Gateway
OL-7995-01
Chapter 1 Overview of the Cisco IPVC 3500 Series Gateway
About Cisco IPVC 3500 Series Gateway Applications and Topologies
Figure 1-9
Mixed ISDN-IP Multipoint Multimedia Conference
About Cisco IPVC 3500 Series Gateway IP Network Connections
The Cisco IPVC 3500 Series Gateway features one 10/100Base-T Ethernet IP port (on the front panel)
and connects to an IP segment through a direct connection to a network switch. The Ethernet ports on
the rear panel are for future use.
About Cisco IPVC 3500 Series Gateway ISDN Network Connections
The Cisco IPVC 3521 BRI Gateway features four BRI ISDN connections. Each BRI line provides two
B channels and one D signalling channel.
The Cisco IPVC 3526 PRI Gateway and Cisco IPVC 3540 PRI Gateway feature configurable E1/T1
PRI ISDN connections. When configured as an E1 connection, each port provides 30 B channels and one
D signaling channel. When configured as a T1 connection, each port provides 23 B channels and one D
signaling channel. The type of line available depends on your local ISDN provider. You configure the
gateway PRI port to an E1 or T1 interface accordingly. In addition, you can choose to activate only
specific channels by using fractional channel selection.
You can connect the gateway directly to a PRI or BRI line provided by your local ISDN provider, or to
a local private branch exchange (PBX) that provides the BRI (as shown in figures
Figure 1-10
and
Figure 1-11
) or PRI connection (as shown in
Figure 1-12
and
Figure 1-13
).
H.323
Terminal
92871
H.323
Terminal
H.323
Terminal
H.323
Terminal
H.323
Terminal
H.320
Terminal
H.320
Terminal
H.320
Terminal
IP phone
IP
network
IP
IP phone
IP
ISDN
Cisco IPVC
Gateway
Cisco IPVC MCU
Cisco IPVC
chassis/unit
Summary of Contents for 3521
Page 137: ......
