Set up a wireless intercom network using smartphones.
Need to speak to a Colleague or an Employee, but he or she is outside the office or building?
Need to speak with your wife, husband, kids or family members, but they are outside the house?
Use your Smartphones and/or computer as intercom extensions and reach them by just dialing their extension numbers.
Talk as long as you wish, anytime, for one flat rate of monthly fee per extension. Simple, easy saves you lot of money than regular phone calls.