Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
437
<resource uri="sip:4605@pbx.yealink.com">
<name > 4607 Yealink</name>
<instance id="pXHQ97tPyQ" state="active" cid="tYzwJM@broadworks"/>
</resource>
</list>
Topic
BLF/BLF List Subscription Configuration
BLF/BLF List Subscription Configuration
The following table lists the parameters you can use to configure BLF/BLF List subscription.
Parameter
account.X.blf.subscribe_period
[1]
<MAC>.cfg
Description
It configures the period (in seconds) of the BLF subscription.
Permitted
Values
Integer from 30 to 2147483647
Default
1800
Supported
Devices
All phones except T19(P) E2 and CP920
Web UI
Account > Advanced > Subscription Period (Seconds)
Parameter
account.X.blf.subscribe_event
[1]
<MAC>.cfg
Description
It configures the event of the BLF subscription.
Permitted
Values
0-dialog
1-presence
Default
0
Supported
Devices
All phones except T19(P) E2 and CP920
Parameter
account.X.out_dialog_blf_enable
[1]
<MAC>.cfg
Description
It enables or disables the phone to handle NOTIFY messages out of the BLF dialog.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Supported
Devices
All phones except T19(P) E2 and CP920
Web UI
Account > Advanced > Out Dialog BLF
Parameter
account.X.blf.match_host.enable
[1]
<MAC>.cfg
Description
It enables or disables host match feature for BLF/BLF list feature.
Permitted
Values
0-Disabled
1-Enabled, the phone can only recognize the NOTIFY message whose host field is the same as the
one in the SUBSCRIBE message.

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