Aastra 9143i Series Administrator's Manual page 566

IP Phone Administrator Guide
Operational Features
Using CFWD Modes via the IP Phone UI
If you enable/disable CFWD using the configuration files or the Aastra Web UI,
you can use the CFWD screens that display to the IP Phone UI. You can access the
CFWD parameters by pressing a configured CFWD key (if previously
configured) OR by pressing Options->Call Forward on the phone's front panel.
The following procedure assumes you have already configured a CFWD key
AND assumes there are three accounts configured on the phone.
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Notes:
1. If there is no CFWD key configured on the phone or it is
removed, you can still enable CFWD via the IP Phone UI at the path
Options->Call Forward.
2. If there is only one account configured on the phone, then the
mode setting is ignored and the phone behaves as if the mode was set
to "Phone".
3. Using the Aastra Web UI, if you change the CFWD key mode to
"Phone", all accounts synchronize to the current setting of Account 1.
41-001160-04 Rev 02, Release 2.5