Yealink SIP-T52S Administrator's Guide

Configuring Advanced Features
731
Parameters
Permitted Values
Default
action_url.attended_transfer_call = http://192.168.0.20/help.xml?IP=$ip
Web User Interface:
Features->Action URL->Attended Transfer
Phone User Interface:
None
action_url.hold
URL within 511 characters
Blank
Description:
Configures the action URL the IP phone sends when placing a call on hold.
Example:
action_url.hold = http://192.168.0.20/help.xml?IP=$ip
Web User Interface:
Features->Action URL->Hold
Phone User Interface:
None
action_url.unhold
URL within 511 characters
Blank
Description:
Configures the action URL the IP phone sends when resuming a hold call.
Example:
action_url.unhold = http://192.168.0.20/help.xml?IP=$ip
Web User Interface:
Features->Action URL->UnHold
Phone User Interface:
None
action_url.held
URL within 511 characters
Blank
Description:
Configures the action URL the IP phone sends when a call is held.
Example:
action_url.held = http://192.168.0.20/help.xml?IP=$ip
Web User Interface:
None

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