Yealink SIP-T48U Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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Expansion Module Page Tips Indicator
Expansion Module Page Tips Configuration
Expansion Module Page Tips Indicator
The following table lists the status of the page switch key LED displayed on the expansion module:
Models LED Status Icons Description
EXP50/EXP43 Flashing red / The BLF monitored user receives an incoming call on the non-current pages.
Expansion Module Page Tips Configuration
The following table lists the parameters you can use to configure expansion module page tips.
Parameter
expansion_module.page_tip.blf_call_in.enable <y0000000000xx>.cfg
Description
It enables or disables the page switch key LED on the EXP50/EXP43 expansion module to indicate
when BLF monitored user receives an incoming call on the non-current pages.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Supported
Devices
T57W, T54W, T53W, T53, T48U, T46U, T43U
Parameter
expansion_module.page_tip.blf_call_in.led <y0000000000xx>.cfg
Description
It configures the page switch key LED status on the EXP50/EXP43 expansion module when BLF mon-
itored user receives an incoming call on the non-current pages.
This value uses the same macro action string syntax as an Enhanced DSS key.
If it is left blank, the default value takes effect.
Example:
expansion_module.page_tip.blf_call_in.led = $LEDr300o300$
It means an infinite loop for page switch key LED status: glow red for 300ms and then be in the off
state for 300ms.
Note: It works only if “expansion_module.page_tip.blf_call_in.enable” is set to 1 (Enabled).
Permitted
Values
String
Default
$LEDr300o300$
Supported
Devices
T57W, T54W, T53W, T53, T48U, T46U, T43U
Time and Date
Yealink phones maintain a local clock. You can choose to get the time and date from SNTP (Simple Network Time
Protocol) time server to have the most accurate time and set DST (Daylight Saving Time) to make better use of day-
light and to conserve energy, or you can set the time and date manually. The time and date can be displayed in sev-
eral formats on the idle screen.
Topics
Time Zone
NTP Settings

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