Yealink SIP-T57W Administrator's Guide

General Features
498
Reboot in Talking Configuration
The following table lists the parameter you can use to configure the reboot in talking.
Parameter
features.reboot_in_talk_enable <y0000000000xx>.cfg
Description
It enables or disables the phone to reboot during a call when it receives a reboot Notify message.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Web UI
Features > General Information > Reboot in Talking
Reserve # in User Name
Reserve # in User Name feature allows the phones to reserve “#” in user name. When Reserve # in User Name fea-
ture is disabled, “#” will be converted into “%23”. For example, the user registers an account (user name: 1010#) on
the phone, the phone will send 1010%23 instead of 1010# in the REGISTER message or INVITE message to the
SIP server.
Example of a SIP REGISTER message:
INVITE sip:2@10.2.1.48:5060 SIP/2.0
Via: SIP/2.0/UDP 10.3.20.6:5060;branch=z9hG4bK1867789050
From: "1010" <sip:1010%23@10.2.1.48:5060>;tag=1945988802
To: <sip:2@10.2.1.48:5060>
Call-ID: 0_2336101648@10.3.20.6
CSeq: 1 INVITE
Contact: <sip:1010%23@10.3.20.6:5060>
Content-Type: application/sdp
Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER,
PUBLISH, UPDATE, MESSAGE
Max-Forwards: 70
User-Agent: Yealink SIP-T46G 28.82.0.20
Allow-Events: talk,hold,conference,refer,check-sync
Content-Length: 300
Topic
Reserve # in User Name Configuration
Reserve # in User Name Configuration
The following table lists the parameter you can use to configure the reserve # in user name.
Parameter
sip.use_23_as_pound <y0000000000xx>.cfg
Description
It enables or disables the phone to reserve the pound sign (#) in the user name.
Permitted
Values
0-Disabled (convert the pound sign into “%23”)
1-Enabled

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