Recent developments in technology have rapidly changed the way companies are communicating with their employees, customers and business partners. How can you tell? Try dialing an outside line beginning with the area code or the number first. Those calls that go through are utilizing today’s voice and data transport of choice, Session Initiation Protocol (SIP). If you have to dial a 1 or a 9 before you make a phone call, you might as well be using smoke signals to communicate.