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Yealink SIP-T31G Administrator's Guide

Yealink SIP-T31G
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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

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Yealink SIP-T31G Specifications

General IconGeneral
Mounting kitYes
Number of handles included1 pc(s)
Display diagonal2.3 \
Display resolution132 x 64 pixels
Operating temperature (T-T)-10 - 50 °C
Operating relative humidity (H-H)10 - 95 %
Voice codecsG.722, G.729, AGC, G.729A, AJB, PLC, G.711Mu, VAD, G.711a, G.723.1, G.726, iLBC, CNG, OPUS
AC adapter input voltage100 - 240 V
AC adapter output current0.6 A
AC adapter output voltage5 V
Power consumption (typical)3 W
Lines quantity2 lines
Phonebook capacity1000 entries
Number of VoIP accounts2
Sustainability certificatesRoHS, REACH
Networking standardsIEEE 802.3af, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1x
Ethernet LAN data rates10, 100, 1000 Mbit/s
Ethernet LAN interface typeGigabit Ethernet
MountingDesk/Wall
Handset typeWired handset
Product typeIP Phone
Product colorGray
Harmonized System (HS) code85171800
Weight and Dimensions IconWeight and Dimensions
Depth189 mm
Width188 mm
Height162 mm
Package depth210 mm
Package width213 mm
Package height103 mm

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