ICTBroadcast has an integrated prepaid billing system and allows real-time control of calls and campaigns according to available funds. REST-based API takes billing and payments to next level by binding ICTBroadcast to a third party web portal. for more information click the following link:
https://ictbroadcast.com/multi-service-billing/

For More Information Visit :
https://ictbroadcast.com/
https://www.ictinnovations.com/