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.
Use the Internet. 1  1. 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. 2  2. Pay for a service. People search organizations such as Intellius will quickly find just about anybody. 3  3. Go to Google.