Specifications

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Catalyst 4224 Access Gateway Switch Software Configuration Guide
OL-2031-02
Chapter 6 Configuring VoIP
Configure Number Expansion
Create a Number Expansion Table
The example depicted in Figure 6-2 pertains to a small company that decides to
use VoIP to integrate its telephony network with its existing IP network. The
destination pattern (or expanded telephone number) associated with
Catalyst 4224 1 (left of the IP cloud) is 408-555-xxxx, where xxxx identifies the
individual dial peers by extension. The destination pattern (or expanded telephone
number) associated with Catalyst 4224 2 (right of the IP cloud) is 729-555-xxxx.
Figure 6-2 Sample VoIP Network
Table 6-1 shows the number expansion table for this scenario.
408 555-1002
408 555-1001
408 555-1003
729 555-3002 729 555-2002
729 555-3001 729 555-2001
WAN WAN
10.1.1.1
10.1.1.2
Catalyst 4224
Catalyst 4224
Router 2
Voice port
0/0
58507
Voice port
1/0
Voice
port
0/1
Voice port 1/0
Voice port 1/1
Voice port 0/1
Voice port 0/0
IP cloud
V V
Router 1