Yealink SIP-T40G Manual

Using Enhanced DSS Keys on Yealink IP Phones
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Using Enhanced DSS Keys on Yealink IP Phones
This guide provides detailed information for system administrators on how to set up enhanced
DSS keys (EDK) on Yealink IP phones.
The features introduced in this guide apply to Yealink SIP-T54S, SIP-T52S, SIP-T48G/S,
SIP-T46G/S, SIP-T42G/S, SIP-T41P/S, SIP-T40P, SIP-T40G, SIP-T29G, SIP-T27P/G, SIP-T23P/G,
SIP-T21(P) E2, SIP-T19(P) E2 and CP860 IP phones running firmware version 81 or later.
Introduction
Enhanced DSS Keys (EDK) enables users to customize the functions of a phone’s DSS keys (line
keys, programmable keys and ext keys) and assign functions to custom soft keys. You can use
EDK to assign frequently-used function to DSS keys and custom soft keys or to create menu
shortcuts to frequently-used phone settings as needed.
The following shows the line keys and soft keys on SIP-T46G IP phones:
Note
Application scenarios involve the following:
 Adding new DSS keys or soft keys to simplify the operation of common telephony tasks
that may need more than one key press with the default configuration.
 Removing certain default DSS keys or soft keys for the functions that may be redundant
or never used.
EDK provides a method of creating interactive macro call sequences that can be executed by the
The line keys are not applicable to SIP-T19(P) E2/CP860 IP phones. The ext keys are only
applicable to SIP-T54S/T52S/T48G/T48S/T46G/T46S/T29G/T27P/T27G IP phones. And to
customize the functions for ext keys, you have to connect the expansion module to the IP phone
in advance.

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