Yealink SIP-T41S Administrator's Guide

Call Features
378
Parameter
features.call_num_filter <y0000000000xx>.cfg
Description
It configures the characters the phone filters when dialing.
If the dialed number contains configured characters, the phone will automatically filter these char-
acters when dialing.
Example:
features.call_num_filter = -
If you dial 3-61, the phone will filter the character - and then dial out 361.
Note: If it is left blank, the phone will not automatically filter any characters when dialing.
Permitted
Values
String within 99 characters
Default
, -()
Web UI
Features > General Information > Call Number Filter
IP Address Call
You can set the phone whether to receive or place an IP call. You can neither receive nor place an IP call if you dis-
able this feature.
Topic
IP Address Call Configuration
IP Address Call Configuration
The following table lists the parameter you can use to configure IP address call.
Parameter
features.direct_ip_call_enable <y0000000000xx>.cfg
Description
It enables or disables to allow IP address call.
Note: If you want to receive an IP address call, make sure “sip.trust_ctrl” is set to 0 (Disabled).
Permitted
Values
0-Disabled
1-Enabled
Default
1
Web UI
Features > General Information > Allow IP Call
Ignoring Incoming Calls
By default, when a phone receives an incoming call, the phone screen prompts the incoming call information. You
should handle the incoming call first before performing other features. For example, you should handle the incom-
ing call when there is an active call in progress, otherwise, you cannot hold or set up a conference on the current
call.
You can configure the phone to ignore an incoming call. The incoming call is still in the progress and is not rejec-
ted, you can choose to answer it or not, or perform other features.
When the phone receives an incoming call in the idle state, the screen prompts the incoming call information.
l To ignore the call, and initial a new call, pick up the handset, press the Speakerphone key or HEADSET key,
press keypad or other line keys.
l
To answer the incoming call, press the corresponding line key, the Answer soft key or the OK key.

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