http://www.techradar.com/news/alexa-can-now-send-text-messages-but-theres-a-catch

Amazon has introduced a new feature: SMS messaging. If you’re currently the proud owner of an Echo device you’ll know that you can send messages between Echo devices, but this new feature allows you to send more traditional text messages using only your voice.

You’ll need to live in the US and have an Android phone linked up to your Alexa account in order to take advantage of this feature. There’s no word yet on whether this feature is going to be coming to iOS devices or other regions.