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Yealink T48s Manual

Yealink T48s
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Place Calls
Using the handset
1. Pick up the handset.
Enter the number, and then tap Send.
Using the speakerphone
1. With the handset on-hook, press .
2. Enter the number, and then tap Send.
Answer Calls
Using the Handset
Pick up the handset.
Using the speakerphone
Press .
End Calls
Using the handset
Hang up the handset or tap the End
Call soft key.
Using the speakerphone
Press or 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
Transfer Calls
Blind transfer
1. Press or tap the Transfer soft key
during an active call. The call is placed on hold.
1. Enter the number to which you want to transfer the call. Press or tap B Transfer.
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 tap Send.
When the second party answers, press or tap Transfer to complete the transfer.
Direct to voicemail transfer
1. Press or tap the Transfer soft key during an active call. The call is placed on hold.
2. Enter *90 followed by the number to which you want to transfer the call.
3. Press or tap Transfer.
Make a Conference Call
1. Tap the Conference soft key during an active
call. The call is placed on hold.
2. Enter the number of the second party, and then
tap Conference.
3. Tap the Conference soft key again when the
second party answers. All parties are now joined
in the conference.
4. Tap the End Call soft key to disconnect all par-

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Yealink T48s Specifications

General IconGeneral
Full duplexYes
Lines quantity- lines
Phonebook capacity- entries
Number of VoIP accounts-
Voice codecsAGC, AJB, CNG, G.711alaw, G.711ulaw, G.722, G.723.1, G.726, G.729A, G.729B, PLC, SILK, VAD, iLBC
Compatible productsSkype for Business
Dual-Tone Multi-Frequency (DTMF) modesIn-band, Out-of band, SIP info
MountingDesk/Wall
Handset typeWired handset
Product typeIP Phone
Product colorBlack
Volume controlDigital
USB 2.0 ports quantity1
Ethernet LAN (RJ-45) ports2
AC adapter input voltage100 - 240 V
AC adapter output current2 A
AC adapter output voltage5 V
Power consumption (typical)4.9 W
Power consumption (Power over Ethernet (PoE))7.5 W
Front cameraNo
Security algorithmsHTTPS, MD5, SRTP, TLS
Networking standardsIEEE 802.1Q, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface typeGigabit Ethernet
Supported network protocolsSIP v1 (RFC2543), v2 (RFC3261), LLDP-MED VLAN, IPv4/IPv6, UDP/TCP/DNS-SRV (RFC 3263)
Cables includedLAN (RJ-45)
Number of handles included1 pc(s)
Display diagonal7 \
Touchscreen typeCapacitive
Display resolution800 x 480 pixels
Graphical user interface (GUI) languageMulti
Storage temperature (T-T)-10 - 50 °C
Operating relative humidity (H-H)10 - 95 %
Master (outer) case width660 mm
Master (outer) case length338 mm
Master (outer) case weight9000 g
Master (outer) case net weight8200 g
Quantity per master (outer) case5 pc(s)
Weight and Dimensions IconWeight and Dimensions
Depth226 mm
Width266 mm
Height185 mm
Package depth324 mm
Package width263 mm
Package height128 mm

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