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Yealink SIP-T42S User Manual

Yealink SIP-T42S
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Customizing Your Phone
77
on page 101.
Dependencies:
Type (Key Event)
Key Type (DND)
Label (key label displayed on the LCD screen)
Usage:
When DND is in phone mode:
1. Press the DND key to activate DND.
2. Press the DND key again to deactivate DND.
When DND is in custom mode:
1. Press the DND key to access the custom DND screen. You can activate or deactivate DND
for one or all accounts.
Note
SMS
You can use this key feature to quick access text message. For more information, refer to Short
Message Service (SMS) on page 178.
Dependencies:
Type (Key Event)
Key Type (SMS)
Label (key label displayed on the LCD screen)
Usage: Press the SMS key when the phone is idle to access text message.
Group Listening
You can use this key feature to activate the Speakerphone and Handset/Headset mode at the
same time. It is suitable for the group conversations which have more than one person present
at one end. You are able to speak and listen through the handset/headset, while the others
nearby can only listen through the speaker.
Dependencies:
Type (Key Event)
Key Type (Group Listening)
Label (key label displayed on the LCD screen)
Usage:
1. During a call, press the Group Listening key to activate the group listening mode.
You can then speak and listen through the handset/headset, while other people at your
side can only listen through the speaker at the same time.
2. Press the Group Listening key again to deactivate the group listening mode.
Zero Touch
You can use this key feature to quickly configure auto provision and network parameters.
Dependencies:
Type (Key Event)
When DND is activated, the DND key LED will illuminate solid green, and the incoming calls will
be rejected automatically.

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Yealink SIP-T42S Specifications

General IconGeneral
ManualYes
Cables includedLAN (RJ-45)
Number of handles included1 pc(s)
Lines quantity12 lines
Phonebook capacity1000 entries
Number of VoIP accounts12
MountingDesk/Wall
Handset typeWired handset
Product typeIP Phone
Product colorBlack
Voice codecsCNG, 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 diagonal2.7 \
Display resolution192 x 64 pixels
AC adapter input voltage100 - 240 V
AC adapter output current1.2 A
AC adapter output voltage5 V
Dual-Tone Multi-Frequency (DTMF) modesIn-band, Out-of band, SIP info
Volume controlDigital
Number of programmable keys6
USB 2.0 ports quantity1
Ethernet LAN (RJ-45) ports2
Networking standardsIEEE 802.3af
Ethernet LAN data rates10, 100 Mbit/s
Ethernet LAN interface typeFast Ethernet
Supported network protocolsSIP v1, SIP v2, LLDP/CDP/DHCP, OpenVPN, IEEE802.1X, IPv6, FTP/TFTP/HTTP/HTTPS
Weight and Dimensions IconWeight and Dimensions
Depth189 mm
Width212 mm
Height175 mm
Package depth223 mm
Package width246 mm
Package height120 mm

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