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Yealink SIP-T48U User Manual

Yealink SIP-T48U
44 pages
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Placing a Call
Using the handset:
1. Pick up the handset.
2. 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.
Using the headset:
1. With the headset connected, press to activate the headset mode.
2. Enter the number, and then tap Send.
To enter the main menu, tap .
To return to the idle screen, tap .
To go back to the previous menu, tap .
To select a soft key, tap the soft key.
To select an item, tap the item.
To turn pages, tap or on the touch screen.
To scroll through values in a pull-down list, press or .
Using Your Phone
Navigating the Touch Screen
Entering and Updating Data
To enter data:
1. Tap the field you want to edit.
2. Tap the IME soft key to switch input modes.
3. Enter data using the keypad.
4. Tap the Save soft key.
To select a field option:
Tap the field name, and then tap the field’s highlighted box. From the pull-down list, tap the desired option.
Basic Call Features
Note: During a call, you can alternate between the headset, hands-free speakerphone and handset modes by pressing the
HEADSET key, the Speakerphone key or by picking up the handset. Headset mode requires a connected headset.
Answering a Call
Using the handset:
Pick up the handset.
Using the speakerphone:
Press .
Using the headset:
Press .
Note: You can reject an incoming call by tapping the Reject soft key.
Ending a Call
Using the handset:
Hang up the handset or tap the End Call soft key.
ENGLISH
4

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Yealink SIP-T48U Specifications

General IconGeneral
Handset typeWired handset
Product typeIP Phone
Product colorGray
USB 2.0 ports quantityUSB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Expansion module supportYes
Ethernet LAN (RJ-45) ports2
Display diagonal7 \
Display resolution800 x 480 pixels
Lines quantity- lines
Phonebook capacity1000 entries
Number of VoIP accounts16
Voice codecsAGC, AJB, AMR-WB, CNG, G.711, G.722, G.723.1, G.726, G.729ab, VAD, iLBC
Security algorithmsAES, HTTPS, SRTP, TLS
Ethernet LAN data rates10, 100, 1000 Mbit/s
Ethernet LAN interface typeGigabit Ethernet
Front camera-
AC adapter input voltage100 - 240 V
Operating temperature (T-T)0 - 40 °C
Operating relative humidity (H-H)10 - 95 %
Keypad number of keys29
Number of handles included1 pc(s)
Harmonized System (HS) code85171800
Weight and Dimensions IconWeight and Dimensions
Width226 mm
Height185 mm

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