SIP stands for System Initiation Protocol  and can allow data and voice connections to be installed and connected using a single line instead of each being run with individual lines and connections.  There are several companies that can install, maintain and service SIP trunking connections, and which is best for you will depend on your individual company needs.
There are several benefits to using SIP trunking for your business, which includes the end of costly equipment that can be less reliable or capable and takes up more space and capital to …