Yealink SIP-T2xP Auto Provisioning Manual page 134

Yealink IP Phones Auto provisioning Guide
Parameter
SIP-T21P/T20P: X ranges from 1 to 2.
SIP-T48G: X ranges from 1 to 29.
SIP-T46G: X ranges from 1 to 27.
SIP-T42G/T41P: X ranges from 1 to 15.)
(not applicable to SIP-T19P and CP860 IP phones)
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Permitted Values
0-N/A (only applicable to SIP-T4X IP phones)
1-Conference
2-Forward
3-Transfer
4-Hold
5-DND
7-Call Return
8-SMS (not applicable to SIP-T20P , SIP-T48G,
SIP-T42G and SIP-T41P IP phones)
9-Directed Pickup
10-Call Park
11-DTMF
12-Voice Mail
13-Speed Dial
14-Intercom
15-Line
16-BLF
17-URL (only applicable to SIP-T4X IP
phones)
18-Group Listening
Descriptions Web Setting Path