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145 - 165 IP Telephony v1.0 SBA Version 1: Copyright © 2005, Cisco Systems, Inc.
R2(config-ephone-dn)# name George
R2(config)# ephone-dn 2 dual-line
R2(config-ephone-dn)# number 5022
R2(config-ephone-dn)# description MrSpacely's Phone
R2(config-ephone-dn)# name MrSpacely
R2(config)# ephone 1
R2(config-ephone)# mac-address uuuu.uuuu.uuuu
R2(config-ephone)# type 7960
R2(config-ephone)# button 1:1
R2(config)# ephone 2
R2(config-ephone)# mac-address vvvv.vvvv.vvvv
R2(config-ephone)# type 7940
R2(config-ephone)# button 1:2
Note: Despite two IP Phones were configured on R1 and on R2, this lab just requires one IP
Phone under R1 and one IP Phone under R2.
3.5 Configuring the PSTN/POTS interface on the CME Router
The PSTN/POTS cloud is being simulated by the ADTRAN Atlas550. This cloud provides
us a PRI/T1 connection so it is necessary to specify the switch type. The isdn switch-type
primary-ni
command specifies primary-ni as the switch type according with the cloud’s
switch type. The framing esf and linecode b8zs commands are used to configure the T1
controller according the Atlas550 (the cloud). The pri-group timeslots 1-24 command
tells the router which timeslots will be used for data.
R1(config)# isdn switch-type primary-ni
R1(config)# controller T1 1/0/0
R1(config-controller)# framing esf
R1(config-controller)# linecode b8zs
R1(config-controller)# pri-group timeslots 1-24
Note: If you get an error message like “no resources available” after you issue the
pri-
group timeslots 1-24
command, check to see if there is enough memory on the NM-
HDV module.
If using the NM-HDV2-1T1/E1 module it is necessary issue the card type t1 <slot> 1
command before issue the commands above, where <slot> is the slot in use by the Network
Module and T1/E1 card. When finished the
card-type and isdn commands, you should be
able to see a voice-port entry on the show running-config command output. This entry
is important because will be used inside the
dial-peer.
Since R2 doesn’t have POTS/PSTN connection, it doesn’t need any commands at this point.
3.6 Configuring Dial Peers