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Yealink SIP-T48U User Manual

Yealink SIP-T48U
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Call History
1. When the phone is idle, tap , and then tap the desired call list on the left.
2. Tap or , or press or to scroll to the desired page.
3. Tap after the desired entry, and then you can do the following:
Tap Send to call the entry.
Tap Add to add the entry to the local directory.
Tap Edit to edit the phone number of the entry before placing a call.
Tap Blacklist to add the entry to the blacklist.
Tap Delete to delete the entry from the list.
Contact Directory
To add a contact:
1. When the phone is idle, tap , and then tap All Contacts on the left.
2. Tap Add to add a contact.
3. Enter a unique contact name in the Name field and contact numbers in the corresponding fields.
4. Tap the Save soft key to accept the change.
To edit a contact:
1. When the phone is idle, tap , and then tap All Contacts on the left.
2. Tap after the desired contact.
3. Edit the contact information.
4. Tap the Save soft key to accept the change.
To delete a contact:
1. When the phone is idle, tap , and then tap All Contacts on the left.
2. Tap after the desired contact , and then tap Delete.
3. Tap OK when the touch screen prompts “Delete selected item?”.
Note: You can add contacts from call history easily. For more information, refer to Call History above.
Volume Adjustment
Press during a call to adjust the receiver volume of the handset/speakerphone/headset.
Customizing Your Phone
Call Conference
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 EndCall soft key to disconnect all parties.
Note: You can split the conference call into two individual calls by tapping the Split soft key.
Voice Message
Message waiting indicator on the idle screen indicates that one or more voice messages are waiting at the message center.
The power indicator LED slowly flashes red.
To listen to voice messages:
1. Tap and then tap Connect, or press .
2. Follow the voice prompts to listen to your voice messages.
Customizing Your Phone
ENGLISH
Note: You can add contacts from call history easily. For more information, refer to Call History above.
ENGLISH
6
Press when the phone is idle or ringing to adjust the ringer volume.
Press to adjust the media volume in the corresponding screen.

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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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