Yealink SIP-T48G Administrator's Manual page 359

Configuring Advanced Features
Parameters Permitted Values Default
Example:
linekey.2.type = 24
Default:
For SIP-T48G IP phones:
The default value of the line key 1-16 is 15, and the default value of the line key
17-29 is 0.
For SIP-T46G/T29G IP phones:
The default value of the line key 1-16 is 15, and the default value of the line key
17-27 is 0.
For SIP-T42G IP phones:
The default value of the line key 1-12 is 15, and the default value of the line key
13-15 is 0.
For SIP-T41P IP phones:
The default value of the line key 1-6 is 15, and the default value of the line key 7-15
is 0.
For SIP-T27P IP phones:
The default value of the line key 1-6 is 15, and the default value of the line key 7-21
is 0.
For SIP-T23P/T23G/T21(P) E2 IP phones:
The default value is 15.
Web User Interface:
DSSKey->Line Key->Type
Phone User Interface:
Menu->Features->DSS Keys->Line Key X->Type
String within 99
linekey.X.value Blank
characters
Description:
Configures the multicast IP address and port number.
X ranges from 1 to 29 (for SIP-T48G).
X ranges from 1 to 27 (for SIP-T46G/T29G).
X ranges from 1 to 15 (for SIP-T42G/T41P).
X ranges from 1 to 21 (for SIP-T27P).
X ranges from 1 to 3 (for SIP-T23P/G)
X ranges from 1 to 2 (for SIP-T21(P) E2).
Example:
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