Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
268
Y=1 or 21, default: 37 – Switch, only for T29G/T27G
Y=2-20, 22-40, default: 0 – NA, only for T29G/T27G
Supported
Devices
T57W, T54W, T53W, T53, T48U, T48S, T48G, T46U, T46S, T46G, T43U, T29G, T27G
Web UI
Dsskey > Ext Key > Type
Parameter
expansion_module.X.key.Y.line
[1]
<y0000000000xx>.cfg
Description
It configures the desired line to apply the ext key feature.
Permitted
Values
T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G: 0, 1-16;
T53W/T53/T43U: 0, 1-12;
T27G: 0, 1-6;
Note: The permitted value 0 is configurable only when "features.fwd_mode" is set to 1 (Custom) and
"expansion_module.X.key.Y.type" is set to 2 (Forward).
Default
1
Supported
Devices
T57W, T54W, T53W, T53, T48U, T48S, T48G, T46U, T46S, T46G, T43U, T29G, T27G
Web UI
Dsskey > Ext Key > Line
Parameter
expansion_module.X.key.Y.value
[1]
<y0000000000xx>.cfg
Description
It configures the value for some ext key features.
For example, when you assign the Speed Dial to the programmable key, this parameter is used to spe-
cify the contact number you want to dial out. It is also used to specify the contact number with the
DTMF sequence. The contact number and DTMF sequence are separated by commas.
Permitted
Values
String within 99 characters
Default
Blank
Supported
Devices
T57W, T54W, T53W, T53, T48U, T48S, T48G, T46U, T46S, T46G, T43U, T29G, T27G
Web UI
Dsskey > Ext Key > Value
Parameter
expansion_module.X.key.Y.label
[1]
<y0000000000xx>.cfg
Description
It configures the label displayed on the LCD screen for a specific programmable key.
This is an optional configuration.
Permitted
Values
String within 99 characters
Default
Blank
Supported
Devices
T57W, T54W, T53W, T53, T48U, T48S, T48G, T46U, T46S, T46G, T43U, T29G, T27G
Web UI
Dsskey > Ext Key > Label
Parameter
expansion_module.X.key.Y.extension
[1]
<y0000000000xx>.cfg
Description
For multicast paging:
It configures the channel of the multicast paging group.
For the BLF/BLF list/intercom feature:
It configures the pickup code.

Yealink SIP-T57W Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Ethernet LAN	Yes
Wi-Fi standards	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Security algorithms	AES, HTTPS, MD5, SRTP
Networking standards	IEEE 802.11a, IEEE 802.11ac, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP/TFTP/HTTP/HTTPS
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	16
AC adapter input voltage	100 - 240 V
AC adapter output current	2 A
AC adapter output voltage	5 V
Volume control	Buttons
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Display diagonal	7 \
Display resolution	800 x 480 pixels
Front camera	No
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Voice codecs	G.722, G.723.1, G.726, G.729A, G.729B, iLBC

Weight and Dimensions

Depth	220 mm
Width	259.4 mm
Height	211 mm