Cisco 1605-R How To Use Manual page 39

Before Installing a Voice Interface Card
Figure 2-2 Network Module Slot Filler Panel
Before Installing a Voice Interface Card
This section contains additional information that you need before installing a voice
interface card in a voice network module installed in a Cisco 3600 series or Cisco 2600
series router
A voice connection requires both a voice network module and a voice interface card. Voice
interface cards are installed in voice network modules only, and do not install directly into
the router chassis. At least one other network module or WAN interface card must be
installed in the router to provide the connection to the IP LAN or WAN. For instructions on
how to install a network module, see the "Installing a Network Module in a Cisco 3600
Series or Cisco 2600 Series Router" section on page 2-2.
Although voice interface cards physically resemble WAN interface cards, voice
Caution
and WAN interface cards are not interchangeable. Voice interface cards cannot be
installed in a WAN interface card slot or a two-slot network module, and WAN interface
cards cannot be installed in a voice network module.
For instructions on inserting a voice interface card into a voice network module, see the
"Installing a WAN or Voice Interface Card in a Network Module or Chassis Slot" section
on page 2-6.
Installing WAN and Voice Interface Cards in a Cisco Modular Router 2-5