Since 2007 we collaborated with world's largest Mobile Network Operators (T-Mobile, Verizon Wireless, AT&T, Sprint, Soft Bank ... , ROGERS, Telefonica, list goes on) to integrate their subscription management APIs, GGSNs to RADIUS ( for AAA) and CDR interfaces for realtime alarms, analytics and customer billing systems development. Our success is - happy employees, happy customers and culture. Our success stories are https://www.zintechnologies.com/case-studies/ We achieve goals without being physically located at your place of business with one objective – services that our clients can rely on. We are successfully delivering for our customers in IoT | M2M | APIs | Mobile Apps | Software Development | Dedicated Staff. read more