Chapter 5. IVR calling cards
System uses Asterisk capabilities to provide IVR service for calling cards with online billing.
In the obsolete implementations this was done using cisco equipment with tcl scripts in it. Now you don't have to buy expensive hardware, because all IVR calling cards service was implemented in pure software!
Following scheme demonstrates principles of work of the calling cards service in the world of Streamco:
All you need fir implementation of the IVR calling cards service is the PSTN<->VOIP gateway which is rather cheap when compared with cisco IVR engines.
Streamco Softswitch is responsible for:
authenticating users;
playing prompts;
authorizing entered destinations;
prohibiting calls in case there are no money left on the user's account;
interrupting current calls in case if user's balance becomes zero during conversation;
making outbound calls
Billing happens immediately after each call ends. Operator can see billed calls immediately after they actually end.
Voice prompts are optional and can be flexibly disabled.
