Yealink SIP-T41S User Manual

Available Features with Optional Accessories
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expansion module.
Assigning the Features for Ext Keys
If EXP40 is connected to the phone, you can customize features for ext keys.
Procedure:
1. Long press the desired ext key on EXP40.
The IP phone LCD screen will enter the user setting interface of this key.
2. Customize the specific feature for this key on the IP phone.
3. Press Save.
Ext keys are configurable via web user interface at the path Dsskey->Ext Key.
Adjusting the Contrast of Expansion Module EXP40
You can configure the contrast of the expansion module EXP40 via the host phone.
Procedure:
1. Navigate to Menu->Basic->Display->Contrast.
If EXP40 is not connected to the phone, the Contrast screen displays "No EXP".
2. Select the desired value between 1 and 10 (highest intensity) from the Contrast field.
3. Press Save.
Adjusting the Backlight of Expansion Module EXP40
When you change the backlight intensity settings on your SIP-T48S/T48G/T46G/T46S IP phone,
the backlight on EXP40 connected to your phone automatically changes to match the new
settings. For more information on how to configure the backlight, refer to Configuring the
Backlight.
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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