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Yealink SIP-T48S Quick Start Guide

Yealink SIP-T48S
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Using the speakerphone:
Press or tap the End Call soft key.
Using the headset:
Tap the End Call soft key.
Redial
Press to enter the Placed Calls list, and then tap the desired entry.
Press twice when the phone is idle to dial out the last dialed number.
Call Mute and Un-mute
Press to mute the microphone during a call.
Press again to un-mute the call.
Call Hold and Resume
To place a call on hold:
Press or tap the Hold soft key during an active call.
To resume the call, do one of the following:
If there is only one call on hold, press or tap the Resume soft key.
If there is more than one call on hold, tap the call you want to resume, and then press or tap the Resume soft key.
Call Transfer
You can transfer a call in the following ways:
Blind Transfer
1. Press or tap the Transfer soft key during an active call. The call is placed on hold.
2. Enter the number you want to transfer to.
3. Press or tap Transfer.
Semi-Attended Transfer
1. Press or tap the Transfer soft key during an active call. The call is placed on hold.
2. Enter the number you want to transfer to, and then press .
3. Press or tap Transfer when you hear the ring-back tone.
Attended Transfer
1. Press or tap the Transfer soft key during an active call. The call is placed on hold.
2. Enter the number you want to transfer to, and then press .
3. Press or tap Transfer when the second party answers.
Call Forward
To enable call forward:
1. When the phone is idle, tap ->Features->Call Forward.
2. Select the desired forward type:
Always Forward----Incoming calls are forwarded unconditionally.
Busy Forward----Incoming calls are forwarded when the phone is busy.
No Answer Forward----Incoming calls are forwarded if not answered after a period of time.
3. Enter the number you want to forward to. For No Answer Forward, tap the gray box of the After Ring Time field, and then tap the desired
ring time to wait before forwarding.
4. Tap the Save soft key to accept the change.
ENGLISH
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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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