Aastra 9143i Series Administrator's Manual page 442

IP Phone Administrator Guide
Operational Features
softkey12 type: speeddial
softkey12 label: voicemail
softkey12 value *89
softkey12 states: outgoing
5-144
Note: The IP phone idle screen condenses the softkeys. So in the
previous example, softkey 12 will appear in position 1 if no other
softkeys are set. A softkey type of "empty" does not display on the idle
screen at all. For more information about the softkey type of "empty" see
Appendix A, the section,
6757i, 6757i CT" on page
"Softkey Settings for 9480i, 9480i CT, 6755i,
A-193.
41-001160-03, Rev 00, Releaes 2.4