Yealink SIP-T52S Administrator's Guide

Configuring Audio Features
895
Parameters
Permitted Values
Default
an active call.
Web User Interface:
Features->General Information->DTMF Repetition
Phone User Interface:
None
features.dtmf.duration
Integer from 0 to
300
100
Description:
Configures the duration time (in milliseconds) for each digit when a sequence of DTMF
tones is played out automatically.
Note: If the time interval between two DTMF digits is less than this value, two or more same
DTMF digits could be identified as one DTMF digit. This may cause the loss of one or more
DTMF digits. For example, 2662 may be identified as 262. If so, you can modify the value of
this parameter to a little lower than the default value. If you change this parameter, the IP
phone will reboot to make the change take effect.
Web User Interface:
None
Phone User Interface:
None
features.dtmf.volume
Integer from -33
to 0
-10
Description:
Configures the frequency level of DTMF digits (in db).
Web User Interface:
None
Phone User Interface:
None
features.dtmf.min_interval
Integer from 0 to
300
50
Description:
Configures the minimum inter-digit time (in milliseconds) between digits when a sequence
of DTMF tones is played out automatically.
Web User Interface:
None

Yealink SIP-T52S Specifications

General

Touchscreen	-
Display diagonal	2.8 \
Backlight display	Yes
Display resolution	320 x 240 pixels
Lines quantity	16 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	12
AC adapter input voltage	100 - 240 V
Bluetooth version	2.1+EDR
Security algorithms	802.1x RADIUS, HTTPS, MD5
Ethernet LAN interface type	Gigabit Ethernet
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Voice codecs	G.722, G.723, G.723.1, G.726, OPUS, iLBC
Volume control	Digital
Operating temperature (T-T)	-10 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Front camera	No
Operating system installed	Linux

Weight and Dimensions

Depth	212 mm
Width	211.6 mm
Height	166.8 mm