Aastra Telecom IP Phone User Manual

Model 57i IP Phone User Guide

 153

Call Forwarding

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 enable call forwarding on a global 
basis or on an individual line-basis, for each line.  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 enable call forwarding on all phones (global settings) or on specific lines 
(local settings) of a single phone. For local settings, you can set call forwarding on up 
to 9 individual lines.

For global and local call forwarding, you can set the following:

• Call forward mode
• Destination number
• Number of rings before forwarding the call (from 1 to 9 rings)

The following are the call forward modes you can set:

Off

(Aastra Web UI only)

Disables call forward 

All

Phone forwards all incoming calls 

immediately to the specified 

destination.

Busy

Phone forwards incoming calls if the 

line is already in use.

No Answer

Phone forwards the call if it is not 

answered in the specified number of 

rings

Busy No Answer

Phone forwards the call if either the 

line is already in use or the call is not 

answered in the specified number of 

rings.

Note: You can set the global call forward settings using the IP phone UI or the 

Aastra Web UI. However, you must use the Aastra Web UI to set the per-
line call forward settings. The per-line settings override the settings for 
global call forwarding.