Definition - What does Nonrepudiation mean? Nonrepudiation is a method of guaranteeing message transmission between parties via digital signature and/or encryption. It is one of the five pillars of information assurance (IA). The other four are availability, integrity, confidentiality and authentication. Nonrepudiation is often used for digital contracts, signatures and email messages.
Definition - What does Cellular Network mean? A cellular network is a radio network distributed over land through cells where each cell includes a fixed location transceiver known as base station. These cells together provide radio coverage over larger geographical areas.
Visit the National Cellular Directory. The National Cellular Directory is an organization which functions much like a land line phone company, keeping a database of individual cell phone numbers. However, it is an opt-in service, and to find a person there, that person must have voluntarily registered. 2. Pay for a service.