Yealink SIP-T27G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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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.
Default
0
Supported
Devices
All phones except CP920
Parameter
voice.headset_send
[1]
<y0000000000xx>.cfg
Description
It configures the sending volume of the headset.
Note: We recommend that you modify this parameter cautiously. An unsuitable value may render the
voice quality bad.

Yealink SIP-T27G Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black, Gold
Wall mountable	Yes
Display diagonal	3.66 \
Display resolution	240 x 120 pixels
RJ-9 ports quantity	2
USB 2.0 ports quantity	1
Voice codecs	CNG, G.711, G.722, G.723.1, G.726, G.729, G.729ab, VAD, iLBC
Dual-Tone Multi-Frequency (DTMF) modes	SIP info
Lines quantity	8 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	6
Bluetooth	-
Security algorithms	AES, MD5
Networking standards	IEEE 802.1Q, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Volume control	Digital
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	210 mm
Width	265 mm
Height	170.5 mm