Yealink SIP-T48U Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
250
Description
It enables or disables the power LED indicator to flash when the phone performs an auto pro-
visioning.
Permitted
Values
0-Disabled, auto provisioning does not change the LED status (that is, the original LED status will be
kept).
1-Enabled, during auto provisioning, the power LED indicator flashes at a fixed frequency.
Default
1
Supported
Devices
T57W, T54W, T53W, T53, T48U, T46U, T43U, T42U, T48S, T46S, T42S, T41S and T27G
Bluetooth
You can pair and connect a Bluetooth headset or Bluetooth-enabled mobile phone with the IP phone. After con-
necting the Bluetooth-enabled mobile phone, you can synchronize the mobile contacts to the IP phone. It is only
applicable to
T57W/T54W/T53W/T53/T48U/T48S/T48G/T46U/T46S/T46G/T43U/T42U/T42S/T41S/T29G/T27G/CP920 phones.
For T57W/T54W/T53W/T53/T48U/T46U/T43U/T42U phones, they can also make and receive mobile calls on the IP
phone. For CP920 phones, you can also use your IP phone as a Bluetooth speaker for your mobile phone and PC.
You can set up a conference among the calls on your IP phone, the PSTN and connected mobile phone.
Note: To use Bluetooth feature on T53/T48U/T48S/T48G/T46U/T46S/T46G/T43U/T42U/T42S/T41S/T29G/T27G phones,
make sure the Bluetooth USB dongle is properly connected to the USB port on the back of the phones. The Bluetooth dongle
should be purchased separately.
Topic
Bluetooth Configuration
Bluetooth Configuration
You can activate or deactivate the Bluetooth mode, and personalize the Bluetooth device name for the IP phone.
The pre-configured Bluetooth device name will display in scanning list of other devices. It is helpful for the other
Bluetooth devices to identify and pair with your IP phone.
The following table lists the parameters you can use to configure Bluetooth.
Parameter
static.bluetooth.function.enable
[1]
<y0000000000xx>.cfg
Description
It enables or disables the Bluetooth feature.
Note: For T53/T48U/T48S/T48G/T46U/T46S/T46G/T43U/T42U/T42S/T41S/T29G/T27G phones, it
works only if “static.usb.power.enable” is set to 1 (Enabled).
Permitted
Values
0-Disabled, you are not allowed to trigger Bluetooth mode to on.
1-Enabled
Default
1
Supported
Devices
T57W, T54W, T53W, T53, T48U, T48S, T48G, T46U, T46S, T46G, T43U, T42U, T42S, T41S, T29G,
T27G, CP920
Parameter
features.bluetooth_enable <y0000000000xx>.cfg
Description
It triggers the Bluetooth mode to on or off.
Note: It works only if “static.bluetooth.function.enable” is set to 1 (Enabled).
Permitted
Values
0-Off
1-On
Default
0
Supported
T57W, T54W, T53W, T53, T48U, T48S, T48G, T46U, T46S, T46G, T43U, T42U, T42S, T41S, T29G,

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