ASTPP is a Most Powerful Advanced Open Source Billing solution for VoIP. A Perfect Solution for Small, Medium and Larger VoIP industries. ASTPP enables service providers to build more scalable and robust VoIP services which can range from single server
Voice over IP (VoIP) presents totally different challenges than a public switched telephone network (PSTN). It runs on the web and inherits many challenges for VoIP service providers on a way to secure VoIP system. Until now, security has been