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Yealink SIP-T42S User Manual

Yealink SIP-T42S
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Customizing Your Phone
69
Deactivating the Bluetooth Mode
To deactivate the Bluetooth mode via phone user interface:
1. Press Menu->Settings->Basic Settings->Bluetooth.
2. Press or , or the Switch soft key to select Off from the Bluetooth field.
3. Press the Save soft key to accept the change.
The Bluetooth headset won’t be connected anymore, but it will still be paired. When you
activate the Bluetooth mode again, the paired Bluetooth headset will appear in the Paired
Bluetooth Device list.
Bluetooth mode is configurable via web user interface at the path Features->Bluetooth.
DSS Keys
There are two types of DSS keys: Line Keys and Programable Keys. Details will be introduced in
the following. The SIP-T42S IP phone supports 15 line keys and 11 programable keys.
Line Keys
You can assign predefined functionalities to line keys. You can also define a label for a line key
feature which will appear on the LCD screen. Line keys allow you to quickly access features such
as recall and voice mail. The line key LEDs will indicate the monitored status when line keys are
assigned with particular features, such as BLF. The default key type of line key 1-12 is Line. The
default key type of line key 13-15 is N/A, which indicates that this line key provides no
functionality until configuration.
To assign functionality to a line key via phone user interface:
1. Press Menu->Features->DSS Keys.
2. Select the desired line key, and then press the Enter soft key.
3. Select the desired key type from the Type field.
4. (Optional.) Select the desired key event type from the Key Type field.
5. (Optional.) Select the desired line from the Account ID field.
6. (Optional.) Enter the string that will appear on the LCD screen in the Label field.
7. (Optional.) Enter the corresponding value in the Value field.
8. (Optional.) Enter the corresponding value in the Extension field.
9. Press the Save soft key to accept the change or the Back soft key to cancel.

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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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