Subscription services are the name of the game today, with many companies wanting to lower their overhead costs while still getting the full benefits. Software as a Service (SaaS) has become the norm for companies choosing to use the cloud rather than purchasing and downloading one-time licenses. Hardware as a Service (HaaS) provides companies with updated infrastructure on a rental basis whenever they need it.  Unified Communications as a Service (UCaaS) is the next frontier for people looking to send out mass notifications and other forms of communication.