If you want to start your own VoIP business then you have to follow these simple 5 steps.
Step 1: Set Up VoIP Infrastructure (Hardware & Software)
For this you need Softswitch, VoIP Billing Solutions, Bandwidth Optimization & Tunneling Software, and Server & Hosting
Step 2: Mobile VoIP Applications
In Mobile VoIP application you need a Mobile Dialer to originate calls and if you want to call from your personal computer then you need a PC Dialer. And To make a call you also need a Calling Card
Step 3: You need a Own Website with Creadit Card Payment Gateway
Step 4: Inter-Connecting with Terminating Carriers
Step 5: Finally, find some customers and provide Customer Support to them