Yealink SIP-T2xP Auto Provisioning Manual page 151

Parameter
expansion_module.X.key.Y.line =
(SIP-T28P/T48G/T46G: X ranges from 1 to 6.
SIP-T26P: X ranges from 1 to 3.
Y ranges from 1 to 40)
(only applicable to SIP-T28P , SIP-T26P , SIP-T48G and
SIP-T46G IP phones)
Permitted Values
62-Network Favorite (only applicable to
SIP-T48G and SIP-T46G IP phones)
63-UC Favorite (only applicable to SIP-T46G
IP phones)
64-Buddies (only applicable to SIP-T48G and
SIP-T46G IP phones)
65-My Status (only applicable to SIP-T48G
and SIP-T46G IP phones)
For SIP-T28P/T26P IP phones:
The default value of the expansion keys
2-20, 22-40 is 0, and the default value of the
expansion keys 1, 21 is 37.
For SIP-T48G/T46G IP phones:
The default value is 0.
It configures the desired line to apply the
expansion module key feature.
1-Line 1
2-Line 2
Integer from 1 to 6
3-Line 3
4-Line 4
5-Line 5
Descriptions
DSSKey->Ext Key->Line
Appendix
Web Setting Path
141