Yealink SIP-T40G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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When a call is made from 1001 to 1002, both the phone and the handset ring. Users can answer the call either on
the phone or handset.
When using satellite mode, note the following:
l The incoming and outgoing lines originally assigned to the handset are disabled.
l Calls made from the handset are handled as calls made from the phone (in the above example, 1002). (The
caller information for such calls will be that of extension 1002.)
l You can configure a mode for whether to continue the conversation on the handset when the phone goes off-
hook, or to send a busy signal to one of the paired phones while the device is not in a call but tries to initiate a
call (prohibited on that device).
Topics
Satellite Mode Configuration
Example: Configuring the Satellite Mode Feature
Satellite Mode Configuration
The following table lists the parameters you can use to configure satellite mode.
Parameter
features.ms.X.slave_handset_number
[1]
<y0000000000xx>.cfg
Description
It specifies which handset to use the satellite mode with the phone.
Permitted
Values
0-None, the satellite mode is disabled.
2-Handset 2
3-Handset 3
4-Handset 4
5-Handset 5
Default
0

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