I have a school district that consists of 4 buildings I want to network them together with these choices of systems I will be adding Sip trunking. Which one of these would be best
Which one of these systems would be easiest to program and configure


LDC & T Enterprise, LLC is a leader in communication applications and services. We offer a variety of commercial and residential wiring solutions ranging from phone systems VOIP These solutions integrate hardware and software to create a tailored plan