SMS conversation allows you to automate SMS conversations with contacts in CiviCRM. It builds on work originally done in the Chained SMS extension.
Development of SMS conversation was funded by the National Democratic Institute. Development of the original Chained SMS extension was funded by Future First. SMS converstation was Developed by Michael McAndrew, Third Sector Design and Matthew Wire, MJW Consulting who can be contacted for support and further development.
See https://docs.civicrm.org/sms-conversation/ for full documentation.