Group Paging; Incoming Intercom Call Features - Aastra 6735i User Manual

Additional Features

Group Paging

Push-to-Talk and Instant Group Call (Clearspan)
Your System Administrator can configure the phone to use paging through the Clearspan system. The Clearspan group
paging feature allows you (using SIP signalling) to unidirectionally page a predefined group of users by dialing an
assigned DN or extension. The group is called and connected in a multi-way conference with the caller. When the group
members' phones are set to Auto-Answer, their phones automatically answer the page.
Group RTP Paging (RTP Streams)
Your System Administrator can configure the phone to receive a Real Time Transport Protocol (RTP) stream from pre-con-
figured multicast address(es) without Clearspan and without involving SIP signaling. Your administrator can specify up
to five multicast addresses that the phone listens for on the network.
The 6735i or 6737i phone in the local network listens for RTP on the preconfigured multicast address. The Phone displays
the Paging message to the phone's LCD. It uses the G711 uLaw CODEC for multicast RTP.
The recipient can drop the incoming page if required. The recipient can also set Do Not Disturb (DND) to ignore any
incoming pages.
For incoming RTP multicasts, the ringing display is dependent on the setting for the Allow Barge-In parameter. (See
"Allow Barge In" on page 51.) If this parameter is disabled, and there is no other call on the phone, then the paging is
automatically played via the default audio device.
If there is an existing call on the phone, the call initially displays in the ringing state. You have the option to accept/ignore
the call. If the Allow Barge-In parameter is enabled, the RTP multicast call barges in, and any existing calls are put on
hold.
If an RTP multicast session already exists on the phone, and the phone receives another incoming RTP multicast session,
the priority is given to the first multicast session and the second multicast session is ignored. The behavior for the incom-
ing calls in this case is also based on the setting for the Allow Barge-In parameter. The incoming call is handled as if there
were an existing call already on the phone.

Incoming Intercom Call Features

By default, the IP phone allows incoming intercom calls to be automatically answered without having to set up an Icom
key on your phone. The phone automatically plays a warning tone when it receives an incoming intercom call. It also
mutes the microphone. If the intercom call comes into the phone while an active call is already present, the phone puts
the active call on hold and answers the intercom call.
Your System Administrator can change the behavior of how the phone handles incoming intercom calls by enabling/dis-
abling specific parameters.
• Auto Answer
• Microphone Mute
• Play Warning Tone
• Allow Barge In
50
6735i/6737i User Guide for Clearspan – 2862-002 – September 2014