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Yealink SIP-T52S Administrator's Guide

Yealink SIP-T52S
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Administrators Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
720
Action URL
Action URL allows IP phones to interact with web server applications by sending an HTTP or
HTTPS GET request. You can specify a URL that triggers a GET request when a specified event
occurs. Action URL can only be triggered by the pre-defined events (e.g., Open DND). The valid
URL format is:
http(s)://IP address of the server/help.xml?
.
The following table lists the pre-defined events for action URL.
Event
Description
Setup Completed
When the IP phone completes startup.
Registered
When the IP phone successfully registers an account.
Unregistered
When the IP phone logs off the registered account.
Register Failed
When the IP phone fails to register an account.
Off Hook
When the IP phone is off hook.
On Hook
When the IP phone is on hook.
Incoming Call
When the IP phone receives an incoming call.
Outgoing Call
When the IP phone places a call.
Established
When the IP phone establishes a call.
Terminated
When the IP phone terminates a call.
Open DND
When the IP phone enables the DND mode.
Close DND
When the IP phone disables the DND mode.
Open Always Forward
When the IP phone enables the always forward.
Close Always Forward
When the IP phone disables the always forward.
Open Busy Forward
When the IP phone enables the busy forward.
Close Busy Forward
When the IP phone disables the busy forward.
Open NoAnswer Forward
When the IP phone enables the no answer forward.
Close NoAnswer Forward
When the IP phone disables the no answer forward.
Transfer Call
When the IP phone transfers a call.
Blind Transfer
When the IP phone blind transfers a call.
Attended Transfer
When the IP phone performs the semi-attended/attended
transfer.
Hold
When the IP phone places a call on hold.
UnHold
When the IP phone resumes a hold call.
Held
When a call of the IP phone is held.

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Yealink SIP-T52S Specifications

General IconGeneral
Touchscreen-
Display diagonal2.8 \
Backlight displayYes
Display resolution320 x 240 pixels
Lines quantity16 lines
Phonebook capacity1000 entries
Number of VoIP accounts12
AC adapter input voltage100 - 240 V
Bluetooth version2.1+EDR
Security algorithms802.1x RADIUS, HTTPS, MD5
Ethernet LAN interface typeGigabit Ethernet
USB 2.0 ports quantity1
Ethernet LAN (RJ-45) ports2
MountingDesk/Wall
Handset typeWired handset
Product typeIP Phone
Product colorBlack
Voice codecsG.722, G.723, G.723.1, G.726, OPUS, iLBC
Volume controlDigital
Operating temperature (T-T)-10 - 40 °C
Operating relative humidity (H-H)10 - 95 %
Cables includedLAN (RJ-45)
Number of handles included1 pc(s)
Front cameraNo
Operating system installedLinux
Weight and Dimensions IconWeight and Dimensions
Depth212 mm
Width211.6 mm
Height166.8 mm

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