Aastra Telecom 57I Incoming/Outgoing Intercom with Auto-Answer and Barge, Outgoing Intercom Calls

IP Phone Administrator Guide Operational Features

Operational IP Phone Features

Incoming/Outgoing Intercom with Auto-Answer and Barge In

The Intercom feature allows you to press the configured Intercom button on the IP phone and then enter the number you want to call to initiate an intercom call. Intercom calls can be controlled either locally (phone-side) or by the SIP server (server-side).

You can configure incoming and outgoing intercom calls on all phone models. A User can configure incoming intercom calls only.

Outgoing Intercom Calls

On outgoing intercom calls, an available unused line is found when the Icom button is pressed. Since this line has no configuration, the phone applies an existing configuration ("Outgoing Intercom Settings", Line, default is Line 1) to this line in preparation for placing the intercom call. For example, an outgoing intercom call can use the configuration of line 1 but places the actual intercom call using line 9. Only an Administrator can configure outgoing intercom calls.

A phone-sideIntercom call indicates the phone is responsible for telling the recipient that an intercom call is being placed, while a server-sideintercom call means the SIP server is responsible for informing the recipient. Server-side calls require additional configuration of a prefix code. After pressing the Icom button and entering the number to call, the phone automatically adds the prefix to the called number and sends the outgoing call via the server.

For outgoing intercom calls, an administrator can configure the following parameters:

Configuration File Parameters		Web UI Parameters
•	sip intercom type	•	Type)
• sip intercom prefix code		•	Prefix Code
•	sip intercom line	•	Line

Note: To configure outgoing intercom calls using these parameters, see “Configuring Intercom Calls Settings” on page 5-62.

5-60 41-001160-00, Release 2.1, Rev 04