68 Model 6755i IP Phone User Guide 
Line Keys, Programmable Keys, and Softkeys
This means that when all line/call appearances are in use, 1 call is connected while the rest are 
on hold. No further outgoing or incoming calls can be made until one of the line/call 
appearances becomes available. 
In active states, such as ringing, conference, connected, etc., all softkeys disappear except 
softkeys that have been set up as line/call appearances, and any context dependent softkeys 
required for the active state, such as the Drop softkey in the connected state. Typically, context 
dependent softkeys appear in the top left position and all line/call appearance softkeys appear in 
the remaining positions. 
You use the Aastra Web UI to set a programmable key or softkey as a line.
Note: In some situations, such as during a conference call, the line/call appearance 
softkeys may overwrite some of the context dependent softkeys. In this case, instead 
of the Previous and Next softkeys, up or down icons,
 5 and 2 appear on the 
display. By using the 
5 and 2 navigation keys, you can access the same 
functionality as the Previous and Next softkeys.