Cisco 3600 Series Configuration Manual - Page 13

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Cisco 3600 Series Configuration Manual
Figure 5
408 116-1002
408 117-1003
Table 5 shows the number expansion table for this scenario.
Table 5
Extension
5....
6....
7....
1...
Note
telephone number.
The information included in this example needs to be configured on both Router 1 and Router 2.
Configure Number Expansion
To define how to expand an extension number into a particular destination pattern, use the following
command in global configuration mode:
Command
num-exp extension-number extension-string
You can verify the number expansion information by using the show num-exp command to verify
that you have mapped the telephone numbers correctly.
After you have configured dial peers and assigned destination patterns to them, you can verify
number expansion information by using the show dialplan number command to see how a
telephone number maps to a dial peer.
Sample Voice over IP Network
408 115-1001
Cisco 3600
Router 1
Voice port
0:D
1:D
T1 ISDN PRI
Sample Number Expansion Table
Destination Pattern
40811.....
40811.....
40811.....
729555....
You can use the period symbol (.) to represent variables (such as extension numbers) in a
729 555-1000
IP
WAN
cloud
10.1.1.1
Configuring Voice over IP for the Cisco 3600 Series VC-25
Configure Number Expansion
729 555-1001
729 555-1002
729 555-1003
T1
ISDN PRI
Voice port 0:D
WAN
10.1.1.2
Cisco 3600
Router 2
Num-Exp Command Entry
num-exp 5.... 408115....
num-exp 6.... 408116....
num-exp 7.... 408117....
num-exp 2.... 729555....
Purpose
Configure number expansion.