Yealink SIP-T52S Administrator's Guide

Configuring Basic Features
575
Parameter
Permitted Values
Default
pressing the Speakerphone key or pressing the HEADSET key directly.
0-Disabled
1-Enabled
If it is set to 0 (Disabled), you need to press the corresponding line key, the Answer soft key
or the OK key to answer an incoming call after picking up the handset, pressing the
Speakerphone key or pressing the HEADSET key.
Note: It is not applicable to CP860/CP920 IP phones.
Web User Interface:
None
Phone User Interface:
None
USB Recording
Call Recording
Yealink IP phones support manual recording during a call or automatic recording once the call
is set up (automatic recording is only applicable to CP860/CP920 IP phones). Before recording,
ensure that the USB flash drive has been inserted into the USB port of the phone or USB port of
the PSTN box CPN10 (CPN10 is only applicable to CP860/CP920 IP phones). Call recording is
only applicable to SIP-T54S, SIP-T52S, SIP-T48G/S, SIP-T46G/S, SIP-T42S, SIP-T41S, SIP-T29G,
SIP-T27G, CP860 and CP920 IP phones.
For manual recording, you need to press the Start REC soft key during a call to record the
audio call or conference. Yealink IP phones also support recording calls by pressing record/URL
record key. For more information, refer to Dsskey Recording (Record and URL Record) on page
698.
Note
The recorded calls are saved in *.wav format and include a date/time stamp, the other party’s
number/IP address/name (or the first person’s number/IP address/name you called), duration
of the call and the recording file size. For example, 20160422-1515-Bob was created on Apr. 22,
2016, at 15:15 and you have a call with Bob. Recorded calls can be played on either the phone
itself or on a computer using an application capable of playing *.wav files.
For more information, refer to Yealink phone-specific user guide.
Before recording any call, especially those involving PSTN, it is necessary to know about the rules
and restrictions of any governing call-recording in the place where you are. It is also very
important to have the consent of the person you are calling before recording the conversation.

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