Information Technology Reference
In-Depth Information
Technically, the way intercom deployments work is through a speed-dial and auto-answer
speed-dial configuration. If the administrative assistant presses the button configured as
an intercom, it speed dials the executive's phone, which auto-answers the call on muted
speakerphone. To establish two-way communication, the executive deactivates mute (by
pressing the Mute button). Understanding this helps make the intercom configuration
much clearer.
To configure intercom functionality, you must configure two new ephone-dns, one for
each side of the intercom connection. These intercom lines should be assigned a number,
just like any other ephone-dn. However, to prevent others from accidentally (or purposely)
dialing the intercom and ending up on muted speakerphone for a random IP phone, the
number should be something users cannot dial from other IP phones. The configuration in
Example 7-8 accomplishes this objective.
Example 7-8
Configuring Intercom
Key
To p i c
CME_Voice(config)# ephone-dn 60
CME_Voice(config-ephone-dn)# number A100
CME_Voice(config-ephone-dn)# intercom A101 label “Manager”
CME_Voice(config-ephone-dn)# exit
CME_Voice(config)# ephone-dn 61
CME_Voice(config-ephone-dn)# number A101
CME_Voice(config-ephone-dn)# intercom A100 label “Assistant”
CME_Voice(config-ephone-dn)# exit
CME_Voice(config)# ephone 1
CME_Voice(config-ephone)# button 2:60
CME_Voice(config-ephone)# restart
restarting 0014.1C48.E71A
CME_Voice(config-ephone)# exit
CME_Voice(config)# ephone 2
CME_Voice(config-ephone)# button 2:61
CME_Voice(config-ephone)# restart
restarting 0019.D122.DCF3
Notice the number assigned to ephone-dn 60 is A100. You cannot dial this number from a
Cisco IP Phone keypad, but you can assign it to a speed-dial button. The intercom com-
mand acts like a speed-dial button on the ephone-dn. In the case of ephone-dn 60, the
command intercom A101 dials the number A101, which is assigned to ephone-dn 61. Be-
cause ephone-dn 61 is also configured with the intercom command, it auto-answers the
incoming call on muted speakerphone. The label syntax allows you to assign a logical
name to the speed-dial; otherwise, the A101 or A100 label will show up next to the line
button on the phone. There are three other arguments you can use with the intercom
command to tune the functionality:
barge-in: Automatically places an existing call on hold and causes the intercom to
immediately answer.
no-auto-answer: Causes the phone to ring rather than auto-answer on speakerphone.
 
Search WWH ::




Custom Search