Yealink SIP-T48U Administrator's Guide

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).

Yealink SIP-T48U Specifications

General

Handset type	Wired handset
Product type	IP Phone
Product color	Gray
USB 2.0 ports quantity	USB 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 support	Yes
Ethernet LAN (RJ-45) ports	2
Display diagonal	7 \
Display resolution	800 x 480 pixels
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	16
Voice codecs	AGC, AJB, AMR-WB, CNG, G.711, G.722, G.723.1, G.726, G.729ab, VAD, iLBC
Security algorithms	AES, HTTPS, SRTP, TLS
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Front camera	-
AC adapter input voltage	100 - 240 V
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Keypad number of keys	29
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Width	226 mm
Height	185 mm