Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
252
Description
It enables or disables the minimum password strength limit.
Permitted
Values
0-Disabled
1-Enabled, when the Bluetooth device is paired with the phone, the minimum password strength can-
not be lower than 56bits.
Default
1
Supported
Devices
T57W, T54W, T53W, T53, T48U, T48S, T46U, T46S, T43U, T42U, T42S, T41S, T27G, CP920
Web UI
Features > Bluetooth > High Security Pairing
[1]
If you change this parameter, the phone will reboot to make the change take effect.
Handset/Headset/Speakerphone Mode
Yealink phones support three ways to place/answer a call: using the handset, using the headset or using the speak-
erphone. You can disable the infrequently used audio device as required.
Topic
Handset/Headset/Speakerphone Mode Configuration
Handset/Headset/Speakerphone Mode Configuration
The following table lists the parameters you can use to configure handset/headset/speakerphone mode.
Parameter
features.speaker_mode.enable <y0000000000xx>.cfg
Description
It enables or disables the phone’s speakerphone mode.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Supported
Devices
All phones except CP920
Parameter
features.handset_mode.enable <y0000000000xx>.cfg
Description
It enables or disables the phone’s handset mode.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Supported
Devices
All phones except CP920
Parameter
features.group_listen_in_talking_enable <y0000000000xx>.cfg
Description
It enables or disables the phone to enter into the group listening mode by pressing the Speakerphone
key when you first answer the call using the handset.
Note: The audio is sent only through the handset. So you are able to speak and listen through the
handset, but you can only listen through the speaker.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Supported
All phones except CP920

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