You would need some kind of API to receive or send information to your 3rd party app. Ive done it in my database with our phone system to make phone calls from access etc. first thing to do would be to lookup or contact ringcentral and ask them if they have an api and have any documentation on it. Then you get to hope that they have examples with vba coding or you have to find it in another programming language and convert it.

Thank you Adam. I will call them.   SO far I'm able to make calls using SEND keys. It works well. But to open the DB in a customer when the phone rings automatically, I need to capture the number when it rings. The rest I can do in access.

Is there a way to detect in Access if a Browser opens in the desktop?.
I need this as a trigger to answer a Call.

VBA-WMI-Determine If a Process or Program Is Running Or Not from Daniel Pineault

Ring Central Developer API

Alex and Adam.  Thank you.   I created an on line SQL Database and using a simple ASP form I Capture the Phone Ringing and enter it into the Database using an append Query. On the User side I connected to this DB via OLEDB and  have a timer event that Displays a list of calls stored in the Database every 3 seconds. The Local Database identifies the caller and with one click I open the callers Page.  Like Richard says it is a GOOD ENOUGH SOLUTION.   Next step will be learning to use The Ring Central API (It is much more Complicated and as usually don't have the time now).   Thank you for your input.