Does your VOIP technology support a feature called 'payphone interface adapter' or 'billing signalling'?No, none of our VOIPs support a feature called "payphone interface adapter" or "billing signalling"
You may look at the log and manually bill them based on the minutes used. You may want to contact a 3rd party billing software solution. Below is a company that offers billing software.
I.S. Associates, Inc.
1260 Rankin, Suite G
Troy, MI 48083