Yealink SIP-T21 E2 Administrator's Guide

Appendix
1035
Parameter-
linekey.X.extension
Configuration File
<y0000000000xx>.cfg
Parameter-
programablekey.X.extension
Parameter-
expansion_module.X.key.Y.exte
nsion
X ranges from 1 to 6, Y ranges from 1 to 20, 22 to
40 (Ext key 21 cannot be configured).
Format
Integer
Default Value
0
Range
0 to 31
Example
Configures the channel of the second multicast
paging group.
linekey.2.extension = 2

Yealink SIP-T21 E2 Specifications

General

Brand	Yealink
Model	SIP-T21 E2
Category	IP Phone
Language	English