The below codes will allow you to set overrides in the program of Yealink phones.

  • Text editor
  • Access to NDP server or Advanced tab in Manager Portal

Yealink Administrator Guide

http://support.yealink.com/documentFront/forwardToDocumentDetailPage?documentId=143

Null Values

You can override any provisioned value by entering %NULL%
I.e. firmware.url.server_type="%NULL%"

Directed Call Pickup

features.pickup.direct_pickup_enable="1"
features.pickup.direct_pickup_code="*35"

Distinctive Ring

The Distinctive Ring feature works by adding a department name to the extension

account.1.alert_info_url_enable="1"
distinctive_ring_tones.alert_info.1.text="Restaurant"
distinctive_ring_tones.alert_info.1.ringer="2"

The example above will cause any Yealink phone to use Ringer 2 whenever a call is received from a member of the 'Restaurant' department.

Wallpaper Sizes

Phone ModelImage FormatResolutionSingle File SizeTotal File Size
VP530.jpg, .png, .bmp1920*1200

SIP-T29G.jpg, .jpeg, .png, .bmp480*272, 1.8MP<= 5MB
SIP-T32G.jpg, .png, .bmp480*272

SIP-T38G.jpg, .png, .bmp480*272

SIP-T46G.jpg, .jpeg, .png, .bmp480*272, 1.8MP<= 5MB
SIP-T46S.jpg, .jpeg, .png, .bmp480*272, 1.8MP

SIP-T48G.jpg, .jpeg, .png, .bmp800*480, 2MP<= 5MB
SIP-T48S.jpg, .jpeg, .png, .bmp800*480, 2MP<= 5MB<= 20MB
SIP-T52S.jpg, .jpeg, .png, .bmp320*240, 4.2MP<= 5MB
SIP-T54S.jpg, .jpeg, .png, .bmp480*272, 4.2MP<= 5MB
SIP-T54W.jpg, .jpeg, .png, .bmp480*272, 2MP<= 5MB
EXP50.jpg, .jpeg, .png, .bmp272*480, 4.2MP<= 5MB


Original Yealink FAQ http://support.yealink.com/faq/faqInfo?id=219

Default Wallpaper

phone_setting.backgrounds="Config:Default.jpg"

Wallpaper T46G

phone_setting.backgrounds="Config:t46g.jpg"
wallpaper_upload.url="http://oitvoip.com/images/t46g.jpg"

Wallpaper T48G

phone_setting.backgrounds="Config:t48g.png"
wallpaper_upload.url="http://oitvoip.com/images/t48g.jpg"

Allow Remote Control From IPs

features.action_uri_limit_ip="any"
or
features.action_uri_limit_ip="192.168.0.1"

Programmable Key

(Replace 'X' with the number of the key you are setting)

programablekey.X.type=
programablekey.X.line=
programablekey.X.value=
programablekey.X.xml_phonebook=
programablekey.X.history_type=
programablekey.X.label=

Line Key Types

0-NA 
1-Conference 
2-Forward 
3-Transfer 
4-Hold 
5-DND 
7-Call Return 
8-SMS 
9-Directed Pickup 
10-Call Park 
11-DTMF 
12-Voice Mail 
13-Speed Dial
14-Intercom 
15-Line 
16-BLF 
17-URL 
18-Group Listening 
20-Private Hold 
22-XML Group 
23-Group Pickup 
24-Multicast Paging 
25-Record 
27-XML Browser
34-Hot Desking 
35-URL Record 
38-LDAP 
39-BLF List 
40-Prefix 
41-Zero Touch 
42-ACD 
45-Local Group 
46-Network Group 
49-Custom Button 
50-Keypad Lock
55-Meet-Me Conference 
56-Retrieve Park 
57-Hoteling 
58-ACD Grace 
59-Sisp Code 
60-Emergency 
61-Directory

0-NA (Only for T41/T42/T46)
22-XML Group (Not support T20)
38-LDAP (Not support T20)
46-Network Group (Not support T20)
8-SMS (Only support T21/T46/T22/T26/T28)
17-URL (Only support T41/T42/T46)
49-Custom Button (Only support T20/T22/T26/T28)

DND Sync

bw.feature_key_sync="0"

Daylight Savings Time 

0 = Disabled 1 = Enabled 2= Automatic

local_time.summer_time="0"

Time Format

0 = 12- Hour Format     1 = 24- Hour Format

local_time.time_format ="0"


Jitter Buffer to Fixed

voice.jib.adaptive="1"
voice.jib.min="120"
voice.jib.max="120"
voice.jib.normal="120"

SIP Scanner Protection

features.direct_ip_call_enable="0"
sip.trust_ctrl="1"
sip_trust_ctrl="1" (only for Firmware under v80)

Provisioning Guide