Yealink SIP-T42S User Manual

Customizing Your Phone
63
Headset Use
If you want to use a wired headset, physically connect your headset to the phone and activate
the headset mode for use. For more information on physically connecting a headset, refer to
Phone Installation on page 16.
If you want to use a wireless headset, insert the Bluetooth USB dongle into the USB port at the
back of the IP phone. For more information on using a Bluetooth headset, refer to Bluetooth Headset
on page 65.
This section provides an introduction to wired headset use.
Note
Headset Mode Activation/Deactivation
To activate the headset mode:
1. Press on the phone.
The headset key LED illuminates solid green and the headset icon appears on the idle
screen.
Press the line key or the Answer soft key to answer an incoming call. The call will be
connected to your headset automatically.
Enter the desired number and then press the Send soft key, the phone will then place a call
using the headset automatically. For more information on using the headset to place a call,
refer to Placing Calls on page 92.
To deactivate the headset mode:
1. Press again on the phone.
The headset key LED goes out and the headset icon disappears from the idle screen.
Headset Prior
You can use headset in priority when headset prior feature is enabled. This feature is especially
useful for permanent or full-time headset users.
To enable headset prior via web user interface:
1. Click on Features->General Information.
If both a Bluetooth headset and a wired headset are connected, only the Bluetooth headset can
be used.
To use headset, make sure the headset mode is enabled. Contact your system administrator for
more information.

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