Hikvision intercom

ok, next one

can anyone try this ISAPI url?
http://username:password@IP_address/ISAPI/VideoIntercom/callStatus?format=json

it should give a call status like idle, ringing , …

but mine stays on idle always, regardless if i pressing the doorbutton

{
"CallStatus":{
"status": "idle"
}}

it this works, its verry easy to capture a doorpess event by making a rest sensor in HA