Voxer - Turn your phone into a Walkie Talkie. Don't waste time on phone calls and voicemails.

Rave Alert - Rave Alert is a multi-modal emergency notification system used by state and local governments, colleges, hospitals and universities.

NextPlane - NextPlane offers cloud-based, scalable unified communications federation service for the enterprise.

DialMyCalls - The easy to use mass and emergency notification platform. Send a phone call, text message or e-mail to your entire list of people in seconds.

Calix - Calix is a communications equipment supplier focused on access solutions for delivery of broadband services.

Call-Em-All - Call or send messages to friends and family members as well as other people who are online. The app allows you to create a message and send it out to multiple devices and pages.