Call URL on answer of call

I am running Distro 5.211.65-12. I need to have the system call a URL on a call being answered. I have contact management software that will open to the Caller ID if we can trigger a URL on the answer of the call. I’ve done some digging, but can’t find answers, I may be searching for the wrong terms, because I’m sure this has been done before. Any help would be great.