Cisco 1605-R How To Use Manual page 15

Table 1-1 WAN and Voice Interface Card Options with Cisco IOS Releases for Cisco 3600 Series
Routers (continued)
Cisco IOS
WAN Interface Card Release
11.1
2-Port ISDN BRI voice –
interface
(VIC-2BRI-S/T-TE)
1 Some ISDN service providers require an external Network Termination 1 (NT1) device to connect an ISDN S/T port to the
ISDN line. If your service provider requires this, you must provide the NT1.
2 The BRI U module does not require an external NT1.
3 Some ISDN service providers require an external Network Termination 1 (NT1) device to connect an ISDN S/T port to the
ISDN line. If your service provider requires this, you must provide the NT1.
Cisco 2600 Series Routers
The Cisco 2600 series is a multifunction platform that combines dial access, routing,
LAN-to-LAN services, and multiservice integration of voice, video, and data in the same
device. The Cisco 2600 series provides a low-entry price for medium-sized businesses. The
Cisco 2600 series has built-in LAN connections that provides a single or dual Ethernet port
(depending on model), one Ethernet, and one token ring port. Cisco 2600 series routers
also include one network module slot and two WAN slots that accept a variety of network
modules and interface cards. Figure 1-5 illustrates a Cisco 2611 router showing the
network module slot and WAN interface card slots.
Cisco IOS Cisco IOS
Release Release
11.2 11.3
– –
Overview of Cisco WAN and Voice Interface Cards 1-7
Cisco 2600 Series Routers
Cisco IOS Cisco IOS
Release Release
11.3T 12.0
– 12.0(2)XD
Cisco IOS
Release
12.0T
–