Yealink SIP-T48U Administrator's Guide

Audio Features
164
Default
Blank
Web UI
Settings > Tones > Auto Answer
Parameter
voice.tone.stutterdial <y0000000000xx>.cfg
Description
It customizes the dial tone when DND or call forward is activated or the phone has a new voice mes-
sage.
The value format is Freq/Duration. For more information on the value format, refer to the parameter
“voice.tone.dial”.
Note: It works only if “voice.tone.country” is set to Custom and "voice.tone.stutter_dial_tone.apply_to_
dnd.enable"/"voice.tone.stutter_dial_tone.apply_to_fwd.enable"/"voice.tone.stutter_dial_tone.apply_
to_vm.enable" is set to 1 (Enabled). If you want to disable this warning tone, set it to 0.
Permitted
Values
String within 512 characters
Default
Blank
Supported
Devices
T57W, T54W, T53W, T53
Web UI
Settings > Tones > Stutter Dial
Parameter
voice.tone.stutter_dial_tone.apply_to_dnd.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to play a specified dial tone when DND is activated on the phone.
The dial tone is configured by "voice.tone.stutterdial".
Note: It works only if “voice.tone.country” is set to Custom.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Supported
Devices
T57W, T54W, T53W, T53
Parameter
voice.tone.stutter_dial_tone.apply_to_fwd.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to play a specified dial tone when call forward is activated on the
phone.
The dial tone is configured by "voice.tone.stutterdial".
Note: It works only if “voice.tone.country” is set to Custom.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Supported
Devices
T57W, T54W, T53W, T53
Parameter
voice.tone.stutter_dial_tone.apply_to_vm.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to play a specified dial tone when the phone has a new voice mes-
sage.
The dial tone is configured by "voice.tone.stutterdial".
Note: It works only if “voice.tone.country” is set to Custom.
Permitted
0-Disabled

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