Yealink SIP-T41S Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
395
[1]
X is the account ID. For T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G, X=1-16; for
T53W/T53/T43U/T42U/T42G/T42S, X=1-12; for T41P/T41S/T27G, X=1-6; for T40P/T40G/T23P/T23G, X=1-3; for T21
(P) E2, X=1-2.
Music on Hold (MoH) Configuration
When a call is placed on hold, the phone will send an INVITE message to the specified MoH server account accord-
ing to the SIP URI. The MoH server account automatically responds to the INVITE message and immediately plays
audio from some source located anywhere (LAN, Internet) to the held party. For more information, refer to draft RFC
draft-worley-service-example.
The following table lists the parameters you can use to configure music on hold.
Parameter
account.X.music_server_uri
[1]
<MAC>.cfg
Description
It configures the address of the Music On Hold server.
Examples for valid values: <10.1.3.165 > , 10.1.3.165, sip:moh@sip.com, <sip:moh@sip.com > ,
<yealink.com > or yealink.com.
Note: The DNS query in this parameter only supports A query.
Permitted
Values
SIP URI within 256 characters
Default
Blank
Web UI
Account > Advanced > Music Server URI
Parameter
account.X.music_on_hold_type
[1]
<MAC>.cfg
Description
It configures the way to process Music On Hold when placing an active call on hold.
Permitted
Values
0-Calling the Music On Hold server before holding the call
1-Calling the Music On Hold server after holding the call
Default
0
[1]
X is the account ID. For T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G, X=1-16; for
T53W/T53/T43U/T42G/T42U/T42S, X=1-12; for T41P/T41S/T27G, X=1-6; for T40P/T40G/T23P/T23G, X=1-3; for T21
(P) E2, X=1-2; for T19(P) E2/CP920, X=1.
Call Mute
You can mute the microphone of the active audio device (handset, headset or speakerphone) on Yealink phones
during an active call or when the phone is on the pre-dialing/dialing/calling/ringing screen. The call is automatically
muted when setting up successfully. Muting before a call is answered prevents the other party from hearing the
local discussion.
You can activate the mute feature by pressing the MUTE key. Normally, the mute feature is automatically deac-
tivated when the active call ends. You can use keep mute feature to keep the mute state persisting across the calls.
Note: Muting microphone on the pre-dialing/dialing/calling/ringing screen is not available on T23P/T23G/T21(P) E2
phones when the keep mute feature is disabled.
Topics
Microphone Mute Configuration
Keep Mute
Mute Alert Tone
Microphone Mute Configuration
The following table lists the parameter you can use to configure the microphone mute 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