Tumblr users can now call a toll-free number to post audio

Tumblr is going a bit old school with a new feature that lets users post audio clips by dialing a toll-free number. Users have to configure their settings first to be able to call the number (1-866-584-6757) to start posting. You don't have to wait for a confirmation to start posting. Once you setup your phone, you're good to go.

Source: Tech Crunch