Yealink SIP-T57W Administrator's Guide

Advanced Features
434
Description
It configures the feature access code of directed call pickup with barge-in for account X.
Permitted
Values
String within 32 characters
Default
Blank
Supported
Devices
All phones except T19(P) E2 and CP920
Web UI
Account > Advanced > BLF List Barge in Code
Parameter
account.X.blf_list_call_parked_code
[1]
<MAC>.cfg
Description
It configures the feature access code of call park for account X.
Permitted
Values
String within 32 characters
Default
Blank
Supported
Devices
All phones except T48G, T46G, T42G, T41P, T29G, T19(P) E2 and CP920
Web UI
Account > Advanced > BLF List Call Parked Code
Parameter
account.X.blf_list_call_parked_list
[1]
<MAC>.cfg
Description
It configures the serial numbers of the monitored users in the BLF list where you can park the active
call for account X.
Multiple serial numbers are separated by commas.
Example:
account.1.blf_list_call_parked_list =
When you leave it blank, you cannot park the active call to any monitored user.
account.1.blf_list_call_parked_list = all
You can park the active call to any monitored user.
account.1.blf_list_call_parked_list = 1,3,4
You can park the active call to the first, third or fourth monitored user in the BLF list.
Note: This parameter has a higher priority than “transfer.dsskey_deal_type”, so that when you press
the BLF list key during a call, the phone parks a call other than transferring the call. It works only if
“account.X.blf_list_call_parked_code” is configured.
Permitted
Values
Blank
all
serial numbers of monitored users in the BLF list
Default
Blank
Supported
Devices
All phones except T48G, T46G, T42G, T41P, T29G, T19(P) E2 and CP920
Parameter
account.X.blf_list_retrieve_call_parked_code
[1]
<MAC>.cfg
Description
It configures the feature access code that initiates retrieval of a parked call on the monitored user.
Permitted
Values
String within 32 characters

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