Cisco CISCO1751 Quick Start Manual page 15

Table 5
Extension
3737
....
5....
You can use a period (.) as a wildcard character representing a single digit in a telephone number.
You can use the show num-exp command to verify the number expansion information.
East# show num-exp
After you have configured dial peers and assigned destination patterns to them, you can use the show
dialplan number command to see how a telephone number maps to a dial peer.
East# show dialplan number
You must still configure each telephone number in full on a local dial peer so that the router can find the
Note
voice port it belongs to.
Configuring FXS Interfaces
This section explains how to configure ports on FXS VICs that connect directly to a standard telephone,
fax machine, or similar device.
Figure 11
provide telephone and fax connections among employees in its office. Two of these telephones are
connected to an FXS VIC port in the West router.
Figure 11
408 555-3737
408 555-4141
78-11259-05
Sample Number Expansion Table
Destination
Pattern Num-Exp Command Entry
14085553737 num-exp 3737 14085553737 To expand 3737 to 14085553737
1408555.... num-exp .... 1408555....
1408555.... num-exp 5.... 1408555....
[dialed-number]
[dialed-number]
shows a basic voice network. A small business uses a Cisco 1751 router (named West) to
Basic Voice Network (West Router)
FXS VIC
0/0
West
FXS VIC
0/1
Description
To expand any dialed sequence
of four digits (represented by
four periods) by prefixing
1408555 to it
To expand a five-digit extension
beginning with the numeral 5 by
prefixing 140855 to it
IP cloud
Cisco 1751 Voice-over-IP Quick Start Guide
Configuring Voice-over-IP
15