Yealink SIP-T53W Administrator's Guide

Call Features
396
Parameter
features.allow_mute <y0000000000xx>.cfg
Description
It enables or disables the allow mute feature for the IP phone.
Note: For T23P/T23G/T21(P) E2 phones, you are allowed to activate the mute feature on the pre-dial-
ing/dialing/calling/ringing screen only if “features.keep_mute.enable” is set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled, you are allowed to mute an active call or activate the mute feature on the pre-dial-
ing/dialing/calling/ringing screen. (Mute the microphone on the calling screen is only applicable to the
T57W/T54W/T53W/T53/T48U/T48S/T48G/T46U/T46S/T46G/T29G phones).
Default
1
Web UI
Features > General Information > Allow Mute
Keep Mute
Keep mute, also known as persistent mute, allows you to keep the mute state persisting across calls.
In a call center or meet room, if incoming calls are answered automatically, the callers may hear the local dis-
cussion. Therefore, you can mute the phone in an idle state to prevent the unintended situation. The mute state per-
sists across calls until you unmute the microphone manually or until the phone restarts.
You can activate the mute feature by pressing the MUTE key in idle/pre-dialing/dialing/ringing/calling/talking state.
Note: For T23P/T23G/T21(P) E2 phones, the Cancel key (X key) can be used to cancel actions, reject incoming calls,
mute/un-mutes calls or activate the mute feature. If keep mute feature is enabled, the Cancel key can only be used as a mute
key.
Topic
Keep Mute Configuration
Keep Mute Configuration
The following table lists the parameter you can use to enable or disable keep mute.
Parameter
features.keep_mute.enable <y0000000000xx>.cfg
Description
It configures the keep mute feature.
Note: It works only if “features.allow_mute” is set to 1 (Enabled).
Permitted
Values
0-The mute feature is automatically deactivated when the active call ends.
1-The mute state is kept until you change the mute state manually or the phone restarts.
Default
0 (for other phones)
1 (for CP920)
Mute Alert Tone
You can configure the phone to play an audible tone if the mute status of the phone is changed. This allows you to
know if your phone is in the mute or un-mute state. In addition, you can set a periodic reminder which plays the aud-
ible tone periodically when the phone is in the mute state. The time interval must not be less than 3 seconds.
It is only applicable to CP920 phones.
Topic
Mute Alert Tone Configuration
Mute Alert Tone Configuration
The following table lists the parameters you can use to configure the mute alert tone feature.

Yealink SIP-T53W Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP mobile phone
Product color	Gray
Keypad illumination	Yes
Wi-Fi standards	802.11a, 802.11g, Wi-Fi 4 (802.11n)
Bluetooth version	4.2
Security algorithms	AES, HTTPS, SIPS
Networking standards	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	8 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	12
AC adapter input voltage	100 - 240 V
AC adapter output current	1.2 A
AC adapter output voltage	5 V
Power consumption (typical)	2.3 W
Volume control	Buttons
Number of programmable keys	8
Storage temperature (T-T)	-30 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Display diagonal	3.7 \
Display resolution	360 x 160 pixels
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Number of DECT wireless handsets	4
Voice codecs	G.722, G.723.1, G.726, G.729A, G.729B, OPUS, iLBC

Weight and Dimensions

Depth	210.6 mm
Width	212 mm
Height	174.5 mm