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Yealink SIP-T31G Administrator's Guide

Yealink SIP-T31G
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Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
502
Supported: timer
Content-Length: 0
Topic
Session Timer Configuration
Session Timer Configuration
The following table lists the parameters you can use to configure the session timer.
Parameter
account.X.session_timer.enable
[1]
<MAC>.cfg
Description
It enables or disables the session timer.
Permitted
Values
0-Disabled
1-Enabled, the phone will send periodic UPDATE requests to refresh the session during a call.
Default
0
Web UI
Account > Advanced > Session Timer
Parameter
account.X.session_timer.expires
[1]
<MAC>.cfg
Description
It configures the interval (in seconds) for refreshing the SIP session during a call.
An UPDATE will be sent after 50% of its value has elapsed. For example, if it is set to 1800 (1800s),
the phone will refresh the session during a call every 900 seconds.
Note: It works only if “account.X.session_timer.enable is set to 1 (Enabled).
Permitted
Values
Integer from 90 to 7200
Default
1800
Web UI
Account > Advanced > Session Expires (90~7200s)
Parameter
account.X.session_timer.refresher
[1]
<MAC>.cfg
Description
It configures who refreshes the SIP session during a call.
Note: It works only if “account.X.session_timer.enable is set to 1 (Enabled).
Permitted
Values
0-UAC
1-UAS
Default
0
Web UI
Account > Advanced > Session Refresher
[1]
X is the account ID. For T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G, X=1-16; for
T53W/T53/T43U/T42G/T42U/T42S, X=1-12; for T41P/T41S/T27G, X=1-6; for T33P/T33G, X=1-4; for
T40P/T40G/T23P/T23G, X=1-3; for T31P/T31G/T31/T21(P) E2, X=1-2; for T30P/T30/T19(P) E2/CP920, X=1.
Reboot in Talking
Reboot in talking feature allows the phones to reboot during an active call when it receives a reboot Notify mes-
sage.
Topic
Reboot in Talking Configuration

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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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