Yealink SIP-T48G Administrator's Manual page 817

The following tables list relationship between the values of X in the following parameters and programable keys for each phone model.
# X ranges from 1 to14.
programablekey.X.type =
programablekey.X.line =
programablekey.X.value =
programablekey.X.xml_phonebook =
programablekey.X.history_type =
programablekey.X.pickup_value =
# X ranges from 1 to 4.
programablekey.X.label =
Phone Model
X
SIP-T19(P) E2
1 SoftKey1
2 SoftKey2
3 SoftKey3
4 SoftKey4
5 Up
6 Down
7 Left
SIP-T42G/
SIP-T23P/T23G/ SIP-T29G/
T41P/T40
T21(P) E2 T27P
P
SoftKey1 SoftKey1 SoftKey1
SoftKey2 SoftKey2 SoftKey2
SoftKey3 SoftKey3 SoftKey3
SoftKey4 SoftKey4 SoftKey4
Up Up Up
Down Down Down
Left Left Left
SIP-T48G/
CP860
T46G
SoftKey1 SoftKey1
SoftKey2 SoftKey2
SoftKey3 SoftKey3
SoftKey4 SoftKey4
Up Up
Down Down
Left
Appendix
797