Yealink SIP-T31G Administrator's Guide

Audio Features
158
Note: It only takes effect on the ringer volume of the speaker on the phone. After the headset is con-
nected, the ringer volume can only be controlled by the headset itself.
Permitted
Values
Integer from 0 to 15
Default
0
Supported
Devices
T57W, T54W, T53W, T53, T48U, T46U, T43U, T42U, T48S, T46S, T42S, T41S, T33P, T33G, T31P,
T31G, T31, T30P, T30, T27G and CP920
Sending Volume Configuration
You can configure the sending volume of currently engaged audio devices (handset, speakerphone or headset)
when the phone is in use.
The following table lists the parameters you can use to configure the sending volume.
Parameter
voice.handfree_send
[1]
<y0000000000xx>.cfg
Description
It configures the sending volume of the speaker.
Note: We recommend that you modify this parameter cautiously. An unsuitable value may render the
voice quality bad.
Permitted
Values
Integer from -50 to 50
Default
0
Web UI
Features > Audio > Handfree Send Volume (-50~50)
Parameter
voice.handfree.autoreset_spk_vol <y0000000000xx>.cfg
Description
It configures the speaker's volume level during a call.
Permitted
Values
0-The speakerphone volume at the end of a call persists between calls.
1 to 15-The speakerphone volume does not persist between calls, and resets to this specified level
each new call.
Default
0
Parameter
voice.handset_send
[1]
<y0000000000xx>.cfg
Description
It configures the sending volume of the handset.
Note: We recommend that you modify this parameter cautiously. An unsuitable value may render the
voice quality bad.
Permitted
Values
Integer from -50 to 50
Default
0
Supported
Devices
All phones except CP920
Web UI
Features > Audio > Handset Send Volume (-50~50)
Parameter
voice.handset.autoreset_spk_vol <y0000000000xx>.cfg
Description
It configures the handset's volume level during a call.
Permitted
Values
0-The handset volume at the end of a call persists between calls.
1 to 15-The handset volume does not persist between calls, and resets to this specified level each
new call.

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