Yealink SIP-T52S Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
768
Procedure
Static DNS cache can be configured only using the configuration files.
Central
Provisioning
(Configuration File)
<y0000000000xx>.cfg
Configure NAPTR/SRV/A records.
Parameters:
dns_cache_naptr.X.name
dns_cache_naptr.X.flags
dns_cache_naptr.X.order
dns_cache_naptr.X.preference
dns_cache_naptr.X.replace
dns_cache_naptr.X.service
dns_cache_naptr.X.ttl
dns_cache_srv.X.name
dns_cache_srv.X.port
dns_cache_srv.X.priority
dns_cache_srv.X.target
dns_cache_srv.X.weight
dns_cache_srv.X.ttl
dns_cache_a.X.name
dns_cache_a.X.ip
dns_cache_a.X.ttl
<MAC>.cfg
Configure the IP phone whether to
cache the additional
DNS records.
Parameter:
account.X.dns_cache_type
Configure the IP phone whether to use
static DNS cache preferentially.
Parameter:
account.X.static_cache_pri
Details of Configuration Parameters:
Parameters
Permitted Values
Default
dns_cache_naptr.X.name
(X ranges from 1 to 12)
Domain name
Blank
Description:

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