Yealink SIP-T21 E2 Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
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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.

Yealink SIP-T21 E2 Specifications

General

Brand	Yealink
Model	SIP-T21 E2
Category	IP Phone
Language	English