Intercom
Intercom allows establishing an audio conversation directly. The IP phone can answer intercom
calls automatically. This feature depends on support from a SIP server.
Outgoing Intercom Calls
Intercom is a useful feature in office environments to quickly connect with an operator or
secretary. Users can press an intercom key to automatically initiate an outgoing intercom call
with a remote extension.
Intercom can be also used to monitor a specific user for status changes on IP phones. For
example, you can configure an intercom key on a supervisor’s phone to monitor the IP phone
user status (busy or idle). When the monitored user places a call, a busy indicator on the
supervisor’s phone indicates that the user’s phone is in use. When the monitored user is idle,
the supervisor can press the intercom key to automatically connect with a preconfigured target
extension for outgoing intercom calls. When the monitored user receives an incoming call, the
supervisor can press the intercom key to pick up the call directly. To pick up the call, you have
to configure the directed call pickup code in advance. You can configure the directed call
pickup code when configuring an intercom key. IP phones support this feature using a
SUBSCRIBE/NOTIFY mechanism as specified in RFC 3265. This feature depends on support from
a SIP server.
Line key/Expansion Module Key LED (configured as an intercom key)
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