New Feature: Voice Broadcasting
We're pleased to announce that we have added the ability to send out voice messages en masse. When using the "Mass Contact" tool, choose "Voice" as the method of communication. You can then record your voice message, and send it out to as many groups as you have selected. This is in addition to being able to send messages via SMS and email.
Note: this requires a Twilio account. You simply enter your account detail on the settings page once, and then, you're good to go!