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Yealink SIP-T48U Administrator's Guide

Yealink SIP-T48U
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Directory
337
should be less than 750K. For other phones, the size of a remote phone book file should be less than
1.5M.
Permitted
Values
URL within 511 characters
Default
Blank
Web UI
Directory > Remote Phone Book > Remote URL
Parameter
remote_phonebook.data.X.name
[1]
<y0000000000xx>.cfg
Description
It configures the display name of the remote phone book item.
Permitted
Values
String within 99 characters
Default
Blank
Web UI
Directory > Remote Phone Book > Display Name
Parameter
remote_phonebook.data.X.username
[1]
<y0000000000xx>.cfg
Description
It configures the user name used to access the remote phone book X.
Permitted
Values
String
Default
Blank
Parameter
remote_phonebook.data.X.password
[1]
<y0000000000xx>.cfg
Description
It configures the password used to access the remote phone book X.
Permitted
Values
String
Default
Blank
Parameter
remote_phonebook.display_name <y0000000000xx>.cfg
Description
It configures the display name of the remote phone book.
If it is left blank, "Remote Phone Book" will be the display name.
Permitted
Values
String within 99 characters
Default
Blank
Parameter
features.remote_phonebook.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to perform a remote phone book search for an incoming or outgoing
call and display the matched results on the phone screen.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Web UI
Directory > Remote Phone Book > Incoming/Outgoing Call Lookup
Parameter
features.remote_phonebook.flash_time <y0000000000xx>.cfg
Description
It configures how often to refresh the local cache of the remote phone book.
If it is set to 3600, the phone will refresh the local cache of the remote phone book every 3600
seconds (1 hour).

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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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