Yealink SIP-T52S Administrator's Guide

Appendix
1015
of line key (line key is not applicable to SIP-T19(P) E2/CP860/CP920 IP phones), programable
key and ext key (ext key is only applicable to SIP-
T54S/T52S/T48G/T48S/T46G/T46S/T29G/T27P/T27G IP phones).
The following table lists the number of DSS keys you can configure for each phone model:
Phone Model
Line Key
Programable Key
Ext Key
SIP-T54S
27
13
60
SIP-T52S
21
11
60
SIP-T48G/S
29
13
40
SIP-T46G/S
27
13
40
SIP-T42G/S
15
11
/
SIP-T41P/S
15
11
/
SIP-T40P/G
3
11
/
SIP-T29G
27
14
39
SIP-T27P/G
21
14
39
SIP-T23P/G
3
11
/
SIP-T21(P) E2
2
11
/
SIP-T19(P) E2
/
11
/
CP860
/
8
/
CP920
/
8
/
Note
The programable key takes effect only if the IP phone is idle.
The ext key takes effect only if the expansion module is connected to the IP phone.

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