Corporate Voice Over IP This Mothers Day. Unite with your mom this Mothers Day with a telephone call using a voip business telephone system. It will save your firm heaps on your telephone bill, let you converse for longer and it’s unproblematic to set up. A VoIP telephone system is an innovative telecommunication technology that has emerged from the telecommunications industry in recent years. It is the using of the computer internet to place calls. By placing calls with this structure, you circumvent your business telephone provider. This makes business calls loads cheaper particularly inter-state and overseas.