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Yealink T48s User Manual

Yealink T48s
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Conference Calls
1. When the first party answers the call, press the Conf soft key to place a new call.
2. The active call is placed on hold.
3. Enter the number of the second party and press , , or the Send soft key.
4. When the second party answers the call, press the Conf soft key again to join all parties in the
conference.
During the conference call, you can do the following:
Press the Hold soft key to place the conference on hold.
Press the Split soft key to split the conference call into two individual calls.
Press the New Call soft key to place a new call.
Press the Back soft key to return to the previous interface.
Press to mute the conference call.
Press the Cancel soft key to drop the conference call.
Do Not Disturb (DND)
Press the DND soft key when the phone is idle. The icon on the idle screen indicates that DND is
enabled. Incoming calls will be rejected automatically and "n Missed Call(s)" ("n" indicates the number of the
missed calls) will prompt on the LCD screen.
History
To view the call history:
1. Press the History soft key. The LCD screen displays all call records.
2. Press or to switch between All, Placed, Received, Missed and Forwarded call lists.
3. Press or to select the desired entry.
4. Press the Option soft key, and then select Detail from the prompt list.
The detailed information of the entry appears on the LCD screen.
To place a call from the call history list:
1. Press the History soft key.
2. Press or to switch between All, Placed, Received, Missed and Forwarded call lists.
3. Press or to select the desired entry.
4. Press the Send soft key.
Contact Directory
You can add local contacts, search for a contact, or simply dial a contact number from the corporate directory.

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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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