Yealink SIP-T40G User Manual

User Guide for T4 Series IP Phones
14
Line Key LED
Line key led is not available on the SIP-T48S/T48G IP phone.
Line key LED
LED Status
Description
Solid green
The line is seized.
The line is in busy or is in a call.
Fast-flashing green
The line receives an incoming call.
Slow-flashing green
The call is placed on hold.
Off
The line is inactive.
Line key LED (configured as a Forward key with a value (destination number))
LED Status
Description
Solid green
The always forward feature is activated.
Off
The always forward feature is deactivated.
Note
Line key LED (configured as a BLF key or BLF List key)
LED Status
Description
Solid green
The monitored user is idle.
Fast-flashing red (200ms)
The monitored user receives an incoming call.
Solid red
The monitored user is busy.
The monitored user’s conversation is placed on hold
(This LED status requires server support).
Slow-flashing red (1s)
The call is parked on the monitored user.
Off
The monitored user does not exist.
Line key LED (used as a page switch key)
LED Status
Description
Solid red
There is a call parked on the line whose line key is not on
the current page.
If the value (the destination number) is not configured for a Forward key, the key LED solids
green when the always/busy/no answer forward feature is activated. It is off when the
always/busy/no answer forward feature is deactivated.
Downloaded from ManualsNet.com search engine

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