Push-to-Talk Over Cellular (PoC) Whitepaper

-What is Push-to-Talk over Cellular (PoC) and how does it work?
-PoC market growth.
-Who uses PoC?
-How does the PoC OPEX model compare to the traditional radio CAPEX model?
-What is the difference between PoC radios and cell phones?
-What are the key features and benefits of PoC?
-What types of devices and applications are used in PoC networks?