Yealink SIP-T40G User Manual

Advanced Phone Features
177
Intercom Allow
Intercom Allow allows the IP phone to automatically answer an incoming intercom call. If you
disable this feature, the IP phone will handle an incoming intercom call like a normal incoming
call. Intercom Allow is enabled by default.
Note
Intercom Mute
Intercom Mute allows the IP phone to mute the microphone for incoming intercom calls.
Intercom Mute is disabled by default.
Intercom Tone
Intercom Tone allows the IP phone to play a warning tone before answering an intercom call.
Intercom Tone is enabled by default.
Intercom Barge
Intercom Barge allows the IP phone to automatically answer an incoming intercom call while an
active call is in progress. The active call will be placed on hold. If you disable this feature, the IP
phone will handle an incoming intercom call like a normal incoming call while there is already an
active call on the IP phone. Intercom Barge is disabled by default.
Note
Procedure:
1. Navigate to Menu->Features->Intercom.
2. Make the desired changes.
3. Press Save.
Intercom features are configurable via web user interface at the path Features->Intercom.
To enable the phone to receive a new incoming call when it has an active call, make sure that call
waiting feature is enabled on the phone in advance. For more information, refer to Configuring
the Call Waiting.
Your administrator can set a period of delay time before the phone automatically answers
intercom calls.
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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