Aastra Telecom SISIP 57I CT - Manual (Page 458)

Hard Key Parameters
A-116 41-001160-00, Rev 01 Release 2.0
IP Phone Administrator Guide
Appendix A
Range Valid values are:
idle
The phone is not being used.
connected The line currently being displayed is
in an active call (or the call is on hold)
incoming The phone is ringing.
outgoing The user is dialing a number, or the
far-end is ringing.
busy The current line is busy because the line is in use or
the line is set as “Do Not Disturb”
Note: For softkey type, Pickup, values can be: just idle, just outgoing, or
idle outgoing.
Example softkey1 states: idle incoming outgoing
softkey2 states: connected