Yealink SIP-T40G Administrator's Guide

Using Handsets with T57W/T54W/T53W/T53 Phones
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use the PIN configured by "base.pin_code" to access some features.
Default
0
Parameter
base.pin_code_for_register <y0000000000xx>.cfg
Description
It configures the PIN for registering or de-registering a handset.
Note: It works only if “base.double_pin_code.enable” is set to 1 (Enabled).
Permitted
Values
Integer from 0000 to 9999
Default
0000
DECT Intercom
Intercom is a useful feature in an office environment to quickly connect with the operator or the secretary. Users can
make internal intercom calls and external intercom calls on the handset. Internal intercom calls are made among
handsets registered to the same phone.
The handset can automatically answer an incoming external intercom call and play warning tone.
Topic
DECT Intercom Configuration
DECT Intercom Configuration
The following table lists the parameters you can use to configure DECT intercom.
Parameter
custom.handset.auto_intercom <y0000000000xx>.cfg
Description
It enables or disables the auto intercom feature on the handset.
Permitted
Values
-1-Do not modify the configuration.
0-Off, auto intercom feature is disabled. Users need to answer incoming internal intercom calls manu-
ally.
1-On(Beep Off), the phone/handset answers an incoming internal intercom call automatically without
a warning tone.
2-On(Beep On), the phone/handset answers an incoming internal intercom call automatically and
plays a warning tone. It works when the silence mode is off.
Default
-1
Handset UI
OK > Settings > Telephony > Auto Intercom
Phone UI
T57W/T54W:
Menu > DECT Settings > Auto Intercom > Auto Intercom
T53W/T53:
Menu > Settings > DECT Settings > Auto Intercom > Auto Intercom
Parameter
features.intercom.headset_prior.enable <y0000000000xx>.cfg
Description
It configures the channel mode when an incoming intercom call is automatically answered.
Note: It works only if "custom.handset.auto_intercom" is set to 1 or 2. For the phone, the headset
mode should be activated for use; for the handset registered to the phone, the headset should be con-
nected in advance.
Permitted
0-Speaker Mode

Yealink SIP-T40G Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Wall mountable	Yes
Wi-Fi	No
Security algorithms	AES, HTTPS, SSL/TLS
Networking standards	IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP, TFTP, HTTP, HTTPS
Voice codecs	G.711, G.711a, G.711u, G.722, G.726, G.729ab
RJ-11 ports quantity	1
Ethernet LAN (RJ-45) ports	2
AC adapter input voltage	100 - 240 V
AC adapter output current	0.6 A
AC adapter output voltage	5 V
Power consumption (typical)	1.6 W
Certification	CE, FCC, ISO 9001
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 90 %
Volume control	Digital
Display diagonal	2.3 \
Display resolution	132 x 64 pixels
Lines quantity	3 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	3
Number of handles included	1 pc(s)

Weight and Dimensions

Depth	175 mm
Width	212 mm
Height	54 mm