Cisco Voice Gateway capture incoming call

[hasunm522]

I am trying to develop a scenario where when a call hits a dial peer (incoming or outgoing) capture the incoming call number without answering the call and call a rest api. Is there anyway that we can do this. ? any suggessions? I have tried using VXML but when call arrives to the GW, application triggers and call get answered. 

[Jonathan Schulenberg]

Check out the UC Gateway Services API:
https://developer.cisco.com/site/uc-gateway-services/

[hasunm522]

I was able to do it using getmediaproperties():