Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series IP Phones674Action URLAction URL allows IP phones to interact with web server applications by sending an HTTP orHTTPS GET request. You can specify a URL that triggers a GET request when a specified eventoccurs. Action URL can only be triggered by the pre-defined events (e.g., Open DND). The validURL format is:http(s)://IP address of the server/help.xml?.The following table lists the pre-defined events for action URL.Event DescriptionSetup 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/attendedtransfer.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.