Yealink SIP-T48U Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
419
Values
Default
0
Parameter
multicast.receive.enhance_volume <y0000000000xx>.cfg
Description
It enables or disables the volume enhancement feature when receiving the multicast paging calls.
Note: It works only if “multicast.listen_address.X.volume" is not set to 0. If the value the parameter "mul-
ticast.listen_address.X.volume" is set to 1-15 and the value of this parameter is set to 1 (Enabled), the
receiving volume will be 16-30.
Permitted
Values
0-Disabled
1-Enabled, the receiving volume will be increased by 15 level.
Default
0
Parameter
multicast.receive.use_speaker <y0000000000xx>.cfg
Description
It enables or disables the phone to always use the speaker as the audio device when receiving the
multicast paging calls.
Permitted
Values
0-Disabled, the engaged audio device will be used when receiving the multicast paging calls.
1-Enabled
Default
0
Parameter
features.paging_auto_resume.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to automatically resume the held multicast paging call after the
second multicast paging call or a new call ends.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Supported
Devices
T57W, T54W, T53W, T53, T48U, T46U, T43U, T42U, T48S, T46S, T42S, T41S, T27G and CP920
[1]
X ranges from 1 to 31.

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