Cisco 2650 - 2650 Router Specifications download pdf (Page 163)

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Cisco IOS Telephony Service, Version 2.02

Chapter 5 Command Reference

intercom (ephone-dn)

Examples The following example shows how to set the intercom on Cisco IP phone directory number 1:

Router(config)# ephone-dn 1

Router(config-ephone-dn) number A5001

Router(config-ephone-dn) name “intercom”

Router(config-ephone-dn) intercom A5002 barge-in

The following example shows intercom configuration between two Cisco IP phones:

ephone-dn 18

number A5001

name “intercom”

intercom A5002 [barge-in]

ephone-dn 19

number A5002

name “intercom”

intercom A5001 [barge-in]

ephone 4

button 1:2 2:4 3:18

ephone 5

button 1:3 2:6 3:19

In this example, directory number (ephone-dn) 18 and directory number (ephone-dn) 19 are set as an

intercom pair. Directory number (DN) 18 is associated with button 3 of Cisco IP phone (ephone) 4 and

directory number (DN) 19 is associated with button number 3 of Cisco IP phone (ephone) 5. Button 3

on both the Cisco IP phone 4 and Cisco IP phone 5 is set as a pair to provide intercom service to each

phone.

The intercom feature acts as a combination speed-dial PLAR and auto-answer with mute. If the barge-in

argument is set on the DN receiving the intercom call, the existing call is forced into the hold state, and

the intercom call is accepted. If the phone user has the handset off hook (that is, not in speakerphone

mode), the user hears a warning beep, and the intercom call is immediately connected with two-way

audio. If the phone user is using speakerphone mode, the intercom connects with the microphone mute

activated.

Note Dialing in to an intercom by any caller and auto-dial to a nonintercom destination are not prohibited.

Calls to an intercom DN originated by a nonintercom caller triggers auto-answer. To prevent

nonintercom originators from manually dialing to an intercom destination, use of the special A, B, C, or

D dual-tone multifrequency (DTMF) digits in the intercom phone numbers is recommended because

these digits cannot be dialed from a normal phone.

Related Commands Command Description

ephone-dn Enters ephone-dn configuration mode and configures the directory numbers

for the Cisco IP phone lines.

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Cisco 2650 - 2650 Router Specifications Page 163