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143 - 165 IP Telephony v1.0 SBA Version 1: Copyright © 2005, Cisco Systems, Inc.
3.3 Configuring the Telephony Service on the CME Router
On this scenario, R1 and R2 will be running the Cisco CME Software. The IP Phones
connected at R1 will register on R1 and the IP Phones connected to R2 will register on R2.
The first step it to enable the CME software on R1/R2. Use the telephony-service to
enable the CME and enter the telephony configure mode.
Note: You can use the
telephony-service setup command to start a “configuration
script” but it will not be used here.
On R1:
Enter the telephony-service configuration mode by issuing the
telephony-service
command on the global configuration mode.
Use the max-ephones and max-dn to specify the max number of ephones and the
numbers of ephones-dn, respectively.
The ip source-address command specifies the address and port used by the CME
software.
Create the phones configuration files on the flash memory by issuing the create cnf-files.
Specify the format of the dial plan to be used on internal IP Phones using the dialplan-
pattern
command.
Finally, the secondary-dialtone 9 command sets the 9 digit as the indicator for another
dial-tone. It is used to make an off network call (get an outside line)..
R1(config)# telephony-service
R1(config-telephony)# max-ephones 4
R1(config-telephony)# max-dn 20
R1(config-telephony)# ip source-address 10.15.0.1 port 2000
R1(config-telephony)# auto assign 1 to 4
R1(config-telephony)# create cnf-files version-stamp Jan 01 2002 00:00:00
R1(config-telephony)# dialplan-pattern 1 5... extension-length 4
R1(config-telephony)# secondary-dialtone 9
R1(config-telephony)# end
On R2:
R2 needs similar configurations but as long R2 don’t have a connection to PSTN/POTS
some commands will not be necessary.
Issue the following command on R2:
R2(config)# telephony-service
R2(config-telephony)# max-ephones 4
R2(config-telephony)# max-dn 20
R2(config-telephony)# ip source-address 10.25.0.1 port 2000
R2(config-telephony)# auto assign 1 to 4
R2(config-telephony)# create cnf-files version-stamp Jan 01 2002 00:00:00
R2(config-telephony)# dialplan-pattern 1 5... extension-length 4
R2(config-telephony)# end
3.4 Configuring the ephones and ephone-dn’s