Cellular radio telephone, also called cellular telephone or cell phone provides voice telephone and other services to (a)———–mobile users. Cellular telephones primarily operate like portable or cordless telephones. However, unlike conventional wire-based cordless phones, cell phones are completely portable and do not require (b) ————jack to access (c) ————-wire-based networks operated by local telephone companies, (d)————– new generation of services for cell phones include video conferencing and (e)——– internet access with (f) ———— ability to send e-mail. Cellular telephones have become very popular with (g) —————professionals and (h)———-consumers as (i)———–way to communicate easily. It has been (j)————–alternative to conventional wire-based services.