Yealink SIP-T42S User Manual

Customizing Your Phone
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2. Select Enabled from the pull-down list of Dual Headset.
3. Click Confirm to accept the change.
Note
Bluetooth Headset
The SIP-T42S IP phone supports Bluetooth. Bluetooth enables low-bandwidth wireless
connections within a range of 10 meters (32 feet). The best performance is in the 1 to 2 meters
(3 to 6 feet) range.
You can activate/deactivate the Bluetooth mode on the phone, and then pair and connect the
Bluetooth headset with your phone. You can scan and pair up to 60 Bluetooth headsets with
your phone. However, only one headset can be connected at a time. You can also disconnect
and delete your Bluetooth headset from the phone.
Note
Dual headset is configurable via web user interface only.
Ensure that the Bluetooth USB dongle is properly connected to the USB port at the back of the IP
phone. For more information, refer to Phone Installation on page 16.

Yealink SIP-T42S Specifications

General

Manual	Yes
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Lines quantity	12 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	12
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Voice codecs	CNG, G.711Mu, G.711a, G.723.1, G.726, G.729ab, VAD, iLBC
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Display diagonal	2.7 \
Display resolution	192 x 64 pixels
AC adapter input voltage	100 - 240 V
AC adapter output current	1.2 A
AC adapter output voltage	5 V
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
Volume control	Digital
Number of programmable keys	6
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
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

Weight and Dimensions

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