Aastra 9143i Series Administrator's Manual page 546

IP Phone Administrator Guide
Operational Features
Aastra Web UI
For the 6753i and 9143i
1 Click on Operation->Programmable Keys.
6753i and 9143i Screen
2 Pick a hard key (from keys 3 through 6) to configure for Last Call Return.
3 In the "Type" field, select lcr.
4 For the 6753i and 9143i:
In the "Line" field, select a line for which to apply the lcr configuration.
5 Click
5-248
to save your changes.
41-001160-03, Rev 00, Releaes 2.4