This free app available for ITouch, IPhone, and Android, allows end users to send voice messages to other HeyTell users. To register as a HeyTell user you will need a valid email. All voice is transmitted through IP, not through cell service. If the receiving party is not running the app, a pop up box will appear informing them of an incoming message. Once registered invite others to join and be part of your HeyTell friends list.
It's like a modern day walkie talkie. Teachers can use this app to have students connect with each other if doing collaborative projects between two classrooms. And parents, if your child is grounded from using the cell phone, yes, they can still communicate.