Base station (or base radio station) is â according to the International Telecommunication Union's (ITU) Radio Regulations (RR) â a land station in the land mobile service. The term is used in the context of mobile telephony, wireless computer networking and other wireless communications and in land surveying.
C-TPAT is a US government-business initiative that was introduced in 2001. It is designed to strengthen overall supply chain and border security by working in close cooperation with the key members of the supply chain-importers, carriers, brokers, warehouse operators and manufacturers. Businesses must apply to participate in C-TPAT, which can be done via the US Customs website.
(Push-To-Talk) PTT is a two-way communication service that works like a walkie talkie. A normal cell phone call is full-duplex, meaning both parties can hear each other at the same time. PTT is half-duplex, meaning communication can only travel in one direction at any given moment; only one person can be heard at a time. To control which person can speak and be heard, PTT requires the person speaking to push a button while talking and then release it when they are done (hence the term Push To Talk.)