Ring Central integration with my CRM

Hello there, we have designed our own CRM according to our business need. We store customers phone number along with their name and email address. I would like to integrate our ring central phones with our CRM so when a customer calls us, his phone number from softphone will match our CRM's data base and trigger all the inquiries, forms and relevant data stored in the CRM so its easy to understand who is calling us and what was the previous discussion / dealing with that specific client. We want to perform this activity by matching the phone number and then triggering the relevant data in a search results or pop up. If this is possible, please advise how to integrate using API. if not then please suggest a best possible way to perform this activity.