title: Twilio returning SMS message to original sender
body: <p>I have a web app that uses Twilio to facilitate members sending SMS to other members of the site. Currently, it's a one way communication and I want to change that. Here is my problem - because the messages are many-to-many, I don't know how to forward the response SMS to the correct sender. For example, member A goes to my site and sends SMS to members F - Z and, at roughly the same time, member B sends SMS to members C - H. Because some members (F - H) received two SMS from different members and respond to both, how do I forward the correct response to the original sender and not mix them up? </p>