VOIP System easily Manageable via browser,
There are Customers already created having one or more SIP accounts,Ratelist is also prepared,Prepaid and Postpaid can be done,Trunking with SIP provider(s), Routing on trunks, Smart pattern recognition for selecting outgoing route,
Option of Calling Card application,
This Demo System is already ready and hosted for you.
Asterisk with A2Billing