MVNO self service and network announcements. The scope was to build high availability self service IVR and network announcements. The platform was based on master-master mysql server, two opensips servers for load balancing and sip error mapping and asterisk servers. We’ve built a fully redundant network without a single point of failure. The service designed to serve as a self-service by phone, customers are calling to the platform and can listen to their current balance(voice, sms, data), can purchase a new plan, when all actions are performed in real time via API to the billing platform. We made the API
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