It's one of the best SMS gateways for Android
The app is available today on the Android market. You can download it on your phone by scanning the QR code below.
SMSsync is a simple, yet powerful SMS to HTTP sync utility that turns any Android phone into a local SMS gateway by sending incoming messages(SMS) to a configured URL (web service).
For your contribution to be accepted into the project, you must sign the Individual Contributor License Agreement (CLA) You can read more about it there [here]
There are a variety of ways to actively participate in the project. These range from writing documentation for the project to translating the app into other languages. If you are a developer and want to help write code for the project, feel free to browse through our issue tracker on github.
SMSsync, as of now, has been completely translated into 5 languages. We use Transifex for hosting our strings and to make translation much easier.
To help translate SMSsync into other languages, simply headover to transifex.net, add a language if it's not there or contribute to the incomplete translations.