A plugin to allow people to send SMS messages from their Mailpiles using 3rd party services (Twilio, Tropo, etc...)
Interested in helping develop this? See this Github Issue
For US based numbers, Twilio is an excellent service that handles sending & receiving of SMS messages via a REST API.
twilio_sms.py is a simple test that sends messages once you hav the twilio dependency installed via pip or other methods
$ pip install twilio
Twilio is free to test out once you create an account, but costs $0.01 per SMS message you send/receive