Configuring The Call Agent Interface; Figure 4-2 Vism To Call Agent Communication - Cisco Voice Interworking Services (VISM) Installation And Configuration Manual

Configuring VISM Features
You have completed configuring the switched AAL2 PVC operating mode parameters. Proceed to the
"Configuring the Call Agent Interface" section on page

Configuring the Call Agent Interface

The CLI call agent configuration commands are used for the VoIP switching and switched AAL2
Note
PVC operating modes only. If your application requires the AAL2 trunking operating mode, do not
use the CLI call agent configuration commands described in this section.
VISM can use one to eight call agents to accomplish the following:
•
•
•
VISM uses IP connectivity in order to communicate with the call agents (see
Figure 4-2
V
MGX 8850
with VISM
Physical connectivity is through a PVC on an MGX 8000 Series platform PXM card's OC-3 port, to a
router (in the IP Connectivity cloud in
Logical IP connectivity is performed by resolving domain name and IP address associations. The
associations are accomplished in the following ways:
•
•
Figure 4-2
You must complete the following tasks to configure the call agent interface:
1.
2.
Cisco VISM Installation and Configuration Guide
4-44
Receive backhauled signaling
Perform call setup
Perform call teardown
VISM to Call Agent Communication
Call Agents
TFTP Server
(up to 8)
IP Connectivity
ATM Network
Statically, by using the CLI call agent configuration commands.
Dynamically, by using an external domain name server (DNS), which is connected to VISM through
IP connectivity.
shows a TFTP server which also has an IP connection to VISM.
Configure domain names and IP addresses.
Set up call agents and protocols.
4-44.
Figure 4-2), and then to the call agents.
Release 3.0, Part Number OL-2521-01 Rev. D0, June 2004
Chapter 4 Configuring VISM Features
Figure 4-2).