Yealink SIP-T41S 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-T41S Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Keypad illumination	Yes
Wi-Fi	No
Networking standards	IEEE 802.3af
Ethernet LAN data rates	10, 100 Mbit/s
Ethernet LAN interface type	Fast Ethernet
Supported network protocols	SIP v1, SIP v2, LLDP/CDP/DHCP, OpenVPN, IEEE802.1X, IPv6, FTP/TFTP/HTTP/HTTPS
Volume control	Digital
Number of programmable keys	6
Lines quantity	6 lines
Phonebook capacity	1000 entries
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
Input frequency	50/60 Hz
AC adapter input voltage	100 - 240 V
AC adapter output current	1.2 A
AC adapter output voltage	5 V
Display diagonal	2.7 \
Display resolution	192 x 64 pixels
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Voice codecs	CNG, G.711Mu, G.711a, G.723.1, G.726, G.729ab, VAD, iLBC
Certification	CE
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	189 mm
Width	212 mm
Height	175 mm
Package depth	223 mm
Package width	246 mm
Package height	120 mm