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Yealink SIP-T42S User Manual

Yealink SIP-T42S
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Getting Started
27
Viewing the Wireless Network Information
To view the wireless network information via phone user interface:
1. Press Menu->Settings->Basic Settings->Wi-Fi->X Available Network(s) (X represents
the number of available networks).
2. Press or to highlight the desired wireless network.
3. Press the Detail soft key to view the detailed wireless network information (e.g., Profile
Name, SSID or Signal Strength).
If the IP phone is connected to a wireless network successfully, you can also press
Menu->Settings->Basic Settings->Wi-Fi->Wi-Fi Status to view the connected wireless
network information.
Managing the Saved Wireless Network
Once the IP phone has ever been connected to a wireless network successfully, the wireless
network profile will be saved in Known Network(s) list. The next time you enable Wi-Fi feature,
the IP phone will be automatically connected to the wireless network which has the highest
priority (the top one). Up to 5 wireless network profiles can be saved in Known Network(s) list. If
you want to add a new one when the IP phone has already saved 5 wireless network profiles, please
delete the older saved profile before adding.
To manage known network(s) via phone user interface:
1. Press Menu->Settings->Basic Settings->Wi-Fi->Known Network(s).
2. Press the Option soft key.
3. Do one of the following:
- To edit the wireless network profile:
1) Select Edit.
2) Edit the desired wireless network information.
3) Press the Save soft key.
- To change the priority of the wireless network:
1) Select Move Up or Move Down to improve or lower the priority of the wireless

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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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