Aastra Telecom C53I User Guide

Operational Features

5-90

41-001160-00, Rev 01  Release 2.0  

IP Phone Administrator Guide

The call forwarding feature on the IP phone allows incoming calls to be forwarded 
to another destination. The phone sends the SIP message to the SIP proxy, which 
then forwards the call to the assigned destination.

Call forwarding is disabled by default. You can configure call forwarding on a 
phone-wide basis or on multi-line phones on a per-line basis.  If you have 
configured call forwarding on an individual line, then the settings for this line are 
used; otherwise, the phone-wide call forward settings are used.

You can configure call forwarding on all phones (global settings) or on specific 
lines (local settings) of a single phone. 

For call forwarding you can set the following:

•

Number of rings before forwarding the call (from 1 to 9 rings)

The following are the call forward modes you can set:

Disables call forward

Phone forwards all incoming calls 

immediately to the specified destination.

Phone forwards incoming calls if the line is 

already in use.

Phone forwards the call if it is not 

answered in the specified number of rings

Phone forwards the call if either the line is 

already in use or the call is not answered 

in the specified number of rings.

Phone uses the phone-wide call forward 

setting.  This is only valid when setting the 

mode of individual lines.