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Yealink SIP-T48S User Manual

Yealink SIP-T48S
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Customizing Your Phone
59
Key As Send
You can set the #” key or *” key to perform as a send key while dialing.
To configure key as send via phone user interface:
1. Tap ->Features->General.
2. Tap the gray box of the Key As Send field, and then select # or * from the pull-down list, or
select Disabled to disable this feature.
3. Tap the Save soft key to accept the change or to cancel.
Key as send is configurable via web user interface at the path Features->General Information.
Phone Lock
You can lock your phone temporarily when you are not using it. This feature helps to protect
your phone from unauthorized use.
When the phone is locked, the following you needed to know:
All keys are locked except the Volume key, digit keys, # key, * key and Speakerphone key. You
are only allowed to dial emergency numbers, reject incoming calls by pressing the X key or
tapping the Reject soft key, answer incoming calls by lifting the handset, pressing the
Speakerphone key, the HEADSET key, the OK key or tapping the Answer soft key, and end the
call by hanging up the handset, pressing the Speakerphone key, X key or tapping the End Call
soft key.
Note
The emergency number setting, if desired, must be made before lock activation. For more
information, refer to Emergency Number on page 127.

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Yealink SIP-T48S Specifications

General IconGeneral
MountingDesk/Wall
Handset typeWired handset
Product typeIP Phone
Product colorBlack
Keypad illuminationYes
Display diagonal7 \
Display resolution800 x 480 pixels
AC adapter input voltage100 - 240 V
AC adapter output current2 A
AC adapter output voltage5 V
USB 2.0 ports quantity1
Ethernet LAN (RJ-45) ports2
Front cameraNo
Voice codecsCNG, G.711Mu, G.711a, G.722, G.723.1, G.726, G.729ab, VAD, iLBC
Lines quantity16 lines
Phonebook capacity1000 entries
Number of VoIP accounts16
Dual-Tone Multi-Frequency (DTMF) modesIn-band, Out-of band, SIP info
Keypad number of keys42
Security algorithmsAES
Networking standardsIEEE 802.3af
Ethernet LAN data rates10, 100, 1000 Mbit/s
Ethernet LAN interface typeGigabit Ethernet
Supported network protocolsSIP v1, SIP v2, LLDP/CDP/DHCP, OpenVPN, IEEE802.1X, IPv6, HTTPS
Operating temperature (T-T)-10 - 50 °C
Operating relative humidity (H-H)10 - 95 %
Cables includedLAN (RJ-45)
Number of handles included1 pc(s)
Harmonized System (HS) code85171800
Weight and Dimensions IconWeight and Dimensions
Depth225 mm
Width266 mm
Height185 mm
Package depth263 mm
Package width324 mm
Package height128 mm

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