Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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Note: The string must be compatible with the digit map feature of MGCP described in 2.1.5 of RFC
3435. It works only if “account.X.dialplan.digitmap.enable” is set to 1 (Enabled). The value configured
by the parameter “account.X.dialplan.digitmap.string” takes precedence over that configured by the
parameter “dialplan.digitmap.string”.
Permitted
Values
String within 2048 characters
Default
Blank
Parameter
account.X.dialplan.digitmap.interdigit_long_timer
[1]
<MAC>.cfg
Description
It configures the time (in seconds) to wait before dialing an entered number if it matches part of any
string of the digit map for the account X.
If it is set to 0, the phone will not dial the entered number if only a partial match exists.
The value of this parameter should be greater than that configured by the parameter “accoun-
t.X.dialplan.digitmap.interdigit_short_timer”.
For example:
account.1.dialplan.digitmap.string = 1xxT|xxxxx<T1 >
account.1.dialplan.digitmap.interdigit_long_timer = 10
account.1.dialplan.digitmap.interdigit_short_timer = 5
When you enter 1, it matches part of two-digit maps, the phone tries to wait 10 seconds and then dials
out 1 if no numbers entered;
When you enter 15, it also matches part of two-digit maps, the phone tries to wait 10 seconds and then
dials out 15 if no numbers entered;
When you enter 153, it also matches part of two-digit maps, the phone tries to wait 10 seconds. But
after waiting for 5 seconds, it completely matches the first digit map and then immediately dials out
153.
Note: It works only if “account.X.dialplan.digitmap.enable” is set to 1 (Enabled). The value configured
by the parameter “account.X.dialplan.digitmap.interdigit_long_timer” takes precedence over that con-
figured by the parameter “dialplan.digitmap.interdigit_long_timer”.
Permitted
Values
Integer from 0 to 255
Default
Blank
Parameter
account.X.dialplan.digitmap.interdigit_short_timer
[1]
<MAC>.cfg
Description
It configures the timeout interval (in seconds) for any string of digit map.
The phone will wait this many seconds before matching the entered digits to the dial plan and placing
the call.
Note: It works only if “account.X.dialplan.digitmap.enable” is set to 1 (Enabled). The value configured
by the parameter “account.X.dialplan.digitmap.interdigit_short_timer” takes precedence over that con-
figured by the parameter “dialplan.digitmap.interdigit_short_timer”.
Permitted
Values
Single configuration (configure a specific value for the timer letter “T” for all strings with “T” of the digit
map)
Example:
account.1.dialplan.digitmap.interdigit_short_timer = 5
If “dialplan.digitmap.string” is set to <[2-9]x:86>3.T|0T, the phone will wait 5 seconds before matching
the entered digits to this dial plan and placing the call.

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