Somleng is 100% Open Source, and released under the permissive MIT License. Please refer to the individual repositories below for more information.
Somleng is Cloud Communications Platform as a Service (CPaaS). It provides an open source implementation of Twilio's REST API, as well as a Dashboard and API for carriers and network providers.
GithubSomlengSWITCH contains various components, including an open source TwiML interpreter, SIP proxies, a media proxy and an SMS gateway.
Github