Yealink SIP-T40G Manual

Using Enhanced DSS Keys on Yealink IP Phones
20
The following table lists the information of parameters:
Parameters
Permitted Values
Default
features.enhanced_dss_keys.enable
0 or 1
0
Description:
It enables or disables the Enhanced DSS Keys (EDK) feature.
0-Disabled
1-Enabled
linekey.X.type/
programablekey.X.type/
expansion_module.X.key.Y.type
73
Refer to the
following
content
Description:
It configures a DSS key as a Custom Key on the IP phone.
The digit 73 stands for the key type Custom Key.
For line keys:
X ranges from 1 to 29 (for SIP-T48G/S)
X ranges from 1 to 27 (for SIP-T54S/T46G/T46S/T29G)
X ranges from 1 to 15 (for SIP-T42G/T42S/T41P/T41S)
X ranges from 1 to 21 (for SIP-T52S/T27P/T27G)
X ranges from 1 to 3 (for SIP-T40P/T40G/T23P/T23G)
X ranges from 1 to 2 (for SIP-T21(P) E2)
For programmable keys:
X=1-10, 12-14, 17-18 (for SIP-T54S/T48G/T48S/T46G/T46S)
X=1-10, 13, 17-18 (for SIP-T52S/T42G/T42S/T41P/T41S/T40P/T40G)
X=1-14, 17-18 (for SIP-T29G/T27P/T27G)
X=1-10, 14, 17-18 (for SIP-T23P/T23G/T21(P) E2)
X=1-9, 13, 14, 17-18 (for SIP-T19(P) E2)
X=1-6, 9, 13 (for CP860)
For ext keys:
For SIP-T54S/T52S:
X ranges from 1 to 3, Y ranges from 1 to 60.
For SIP-T48G/T48S/T46G/T46S:
X ranges from 1 to 6, Y ranges from 1 to 40.
For SIP-T29G/T27P/T27G:
X ranges from 1 to 6, Y ranges from 1 to 20, 22 to 40 (Ext key 21 cannot be

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