Specifications

Configure Number Expansion

Voice over IP for the Cisco AS5300 25

Verify T1 CAS Conﬁguration

To verify your controller is up and running and no alarms have been reported, perform the following

task:

• Enter the show controller t1 or show controller e1 command and specify the port number.

5300# show controller t1 2

T1 2 is up.

No alarms detected.

Version info of slot 0: HW: 2, Firmware: 16, PLD Rev: 0

Manufacture Cookie Info:

EEPROM Type 0x0001, EEPROM Version 0x01, Board ID 0x42,

Board Hardware Version 1.0, Item Number 73-2217-4,

Board Revision A0, Serial Number 06467665,

PLD/ISP Version 0.0, Manufacture Date 14-Nov-1997.

Framing is ESF, Line Code is B8ZS, Clock Source is Internal.

Data in current interval (269 seconds elapsed):

0 Line Code Violations, 0 Path Code Violations

0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Note the following:

— The controller must report being up.

— No errors should be reported.

Tip

Make sure the show controller t1 output is not reporting alarms or violations.

Conﬁgure Number Expansion

In most corporate environments, the telephone network is conﬁgured so that you can reach a

destination by dialing only a portion (an extension number) of the full E.164 telephone number.

Voice over IP can be conﬁgured to recognize extension numbers and expand them into their full

E.164 dialed number by using two commands in tandem: destination-pattern and num-exp. Before

you conﬁgure these two commands, it is helpful to map individual telephone extensions with their

full E.164 dialed numbers. This mapping can be done easily by creating a number expansion table.

Create a Number Expansion Table

In Figure 4, a small company wants to use Voice over IP to integrate its telephony network with its

existing IP network. The destination pattern (or expanded telephone number) associated with Access

Server 1 (located to the 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

Access Server 2 (located to the right of the IP cloud) is (729) 411-xxxx.