Yealink SIP-T52S Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
770
Parameters
Permitted Values
Default
Phone User Interface:
None
dns_cache_naptr.X.preference
(X ranges from 1 to 12)
Integer from 0 to 65535
0
Description:
Configures the preference of NAPTR record X.
NAPTR record with lower value is more preferred when the multiple NAPTR records have
the same order value.
Example:
dns_cache_naptr.1.preference = 50
Web User Interface:
None
Phone User Interface:
None
dns_cache_naptr.X.replace
(X ranges from 1 to 12)
Domain name with SRV
prefix
Blank
Description:
Configures a domain name to be used for the next SRV query in NAPTR record X.
Example:
dns_cache_naptr.1.replace = _sip._tcp.yealink.pbx.com
Web User Interface:
None
Phone User Interface:
None
dns_cache_naptr.X.service
(X ranges from 1 to 12)
String within 32
characters
Blank
Description:
Configures the transport protocol available for the server in NAPTR record X.
SIP+D2U: SIP over UDP
SIP+D2T: SIP over TCP
SIP+D2S: SIP over SCTP
SIPS+D2T: SIPS over TCP
Example:

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