Yealink SIP-T31G Administrator's Guide

Phone Customization
254
Description
It enables or disables the minimum password strength limit.
Permitted
Values
0-Disabled
1-Enabled, when the Bluetooth device is paired with the phone, the minimum password strength can-
not be lower than 56bits.
Default
1
Supported
Devices
T57W, T54W, T53W, T53, T48U, T48S, T46U, T46S, T43U, T42U, T42S, T41S, T27G, CP920
Web UI
Features > Bluetooth > High Security Pairing
[1]
If you change this parameter, the phone will reboot to make the change take effect.
Handset/Headset/Speakerphone Mode
Yealink phones support three ways to place/answer a call: using the handset, using the headset or using the speak-
erphone. You can disable the infrequently used audio device as required.
Topic
Handset/Headset/Speakerphone Mode Configuration
Handset/Headset/Speakerphone Mode Configuration
The following table lists the parameters you can use to configure handset/headset/speakerphone mode.
Parameter
features.speaker_mode.enable <y0000000000xx>.cfg
Description
It enables or disables the phone’s speakerphone mode.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Supported
Devices
All phones except CP920
Parameter
features.handset_mode.enable <y0000000000xx>.cfg
Description
It enables or disables the phone’s handset mode.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Supported
Devices
All phones except CP920
Parameter
features.group_listen_in_talking_enable <y0000000000xx>.cfg
Description
It enables or disables the phone to enter into the group listening mode by pressing the Speakerphone
key when you first answer the call using the handset.
Note: The audio is sent only through the handset. So you are able to speak and listen through the
handset, but you can only listen through the speaker.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Supported
All phones except CP920

Yealink SIP-T31G Specifications

General

Mounting kit	Yes
Number of handles included	1 pc(s)
Display diagonal	2.3 \
Display resolution	132 x 64 pixels
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Voice codecs	G.722, G.729, AGC, G.729A, AJB, PLC, G.711Mu, VAD, G.711a, G.723.1, G.726, iLBC, CNG, OPUS
AC adapter input voltage	100 - 240 V
AC adapter output current	0.6 A
AC adapter output voltage	5 V
Power consumption (typical)	3 W
Lines quantity	2 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	2
Sustainability certificates	RoHS, REACH
Networking standards	IEEE 802.3af, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1x
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	189 mm
Width	188 mm
Height	162 mm
Package depth	210 mm
Package width	213 mm
Package height	103 mm