erlang-otp: erlang-otp (a programming language and runtime environment) erlang-otp: erlang-otp: Erlang is a general-purpose programming language and runtime erlang-otp: environment. Erlang has built-in support for concurrency, distribution erlang-otp: and fault tolerance. Erlang is used in several large telecommunication erlang-otp: systems from Ericsson. Erlang is available as open source from erlang-otp: http://www.erlang.org. erlang-otp: erlang-otp: erlang-otp: erlang-otp: