Yealink SIP-T52S Administrator's Guide

Configuring Advanced Features
755
Parameters
Permitted Values
Default
information. So the IP phone will directly send the requests to the secondary server.
If it is set to 1 (Enabled), the IP phone will register to the secondary server first, and then
send the requests to it.
X ranges from 1 to 16 (for SIP-T54S/T48G/T48S/T46G/T46S/T29G)
X ranges from 1 to 12 (for SIP-T52S/T42G/T42S)
X ranges from 1 to 6 (for SIP-T41P/T41S/T27P/T27G)
X ranges from 1 to 3 (for SIP-T40P/T40G/T23P/T23G)
X ranges from 1 to 2 (for SIP-T21(P) E2)
X is equal to 1 (for SIP-T19(P) E2/CP860/CP920)
Web User Interface:
None
Phone User Interface:
None
account.X.sip_server.Y.only_signal_with_registered
(X ranges from 1 to 16, Y ranges from 1 to 2)
0 or 1
0
Description:
Enables or disables the IP phone to only send requests to the registered server for account
X when encountering a failover.
0-Disabled
1-Enabled
X ranges from 1 to 16 (for SIP-T54S/T48G/T48S/T46G/T46S/T29G)
X ranges from 1 to 12 (for SIP-T52S/T42G/T42S)
X ranges from 1 to 6 (for SIP-T41P/T41S/T27P/T27G)
X ranges from 1 to 3 (for SIP-T40P/T40G/T23P/T23G)
X ranges from 1 to 2 (for SIP-T21(P) E2)
X is equal to 1 (for SIP-T19(P) E2/CP860/CP920)
Note: It works only if the value of the parameter “account.X.sip_server.Y.register_on_enable”
is set to 1 (Enabled) and the value of the parameter “account.X.sip_server.Y.failback_mode”
is set to 1, 2 or 3.
Web User Interface:
None
Phone User Interface:
None
account.X.sip_server.Y.invite_retry_counts
Integer from 1 to
3

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