Voxer is a free technology that allows you to leave a voice message
using your computer or smart phone.
These messages are 100% encrypted and secure.
The reason I use Voxer is that Voxer completely STOPS the problem of playing "phone tag"
When you have a question, you just pick up your smart phone, ask your question, and look forward to a reply.
NO WAITING OR TRYING TO REMEMBER WHAT YOU WANTED TO ASK.
No phone tag. No undelivered emails.
These messages can be transcribed into text and are saved for future reference if you want them.