Design and build complex, scalable commercial-grade systems with the Open Telecom Platform (OTP), the open source system developed by Ericsson and written in Erlang. With this hands-on book, you'll learn how to apply OTP libraries and techniques to develop concurrent, fault-tolerant systems with no single point of failure. Written by the authors of O'Reilly's Erlang Programming, including a member of OTP's R1 release team, this guide takes you through the basics of OTP and Erlang Design Patterns, and demonstrates how the platform can be used in a wide range of industries. If you have Erlang experience, you'll learn how to overcome key obstacles in OTP that have thwarted many other developers.