Yealink SIP-T48U Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
232
Note: This parameter also affects the history records display.
Permitted
Values
0-Names matched to the entries in the following phone directories are displayed preferentially, the pri-
ority is as follows: Local Directory > Remote Phone Book > Broadsoft Network Directory > BroadCloud
Buddies > LDAP Directory > Network signaling.
1-Names provided through network signaling are displayed preferentially.
Default
0
Supported
Devices
All phones except T48G, T46G, T42G, T41P and T29G
Parameter
phone_setting.incoming_call.horizontal_roll_interval <y0000000000xx>.cfg
Description
It configures the interval (in milliseconds) for the phone to horizontally scroll the caller information
when the phone is ringing.
Permitted
Values
Integer from 100 to 2000
Default
500
Supported
Devices
All phones except CP920
Parameter
account.X.update_ack_while_dialing
[1]
<MAC>.cfg
Description
It enables or disables the phone to update the display of call ID according to the ACK message.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Parameter
account.X.refresh_remote_id.enable
[1]
<MAC>.cfg
Description
It enables or disables the phone to update the identity of the caller according to the request message
from the remote party.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Parameter
sip.disp_incall_to_info
[2]
<y0000000000xx>.cfg
Description
It enables or disables the phone to display the identity contained in the To field of the INVITE message
when it receives an incoming call.
Permitted
Values
0-Disabled
1-Enabled
Default
0
[1]
X is the account ID. For T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G, X=1-16; for
T53W/T53/T43U/T42G/T42U/T42S, X=1-12; for T41P/T41S/T27G, X=1-6; for T40P/T40G/T23P/T23G, X=1-3; for T21
(P) E2, X=1-2; for T19(P) E2/CP920, X=1.
[2]
If you change this parameter, the phone will reboot to make the change take effect.
Display Method on Dialing
When the phone is on the pre-dialing or dialing screen, the account information will be displayed on the phone
screen.

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