November 19, 2003Berlin company CryptoPhone releases a GSM mobile handset that uses encryption technology to ensure that calls can't be intercepted.TAGS:GSM, Berlin, mobile communication, encryption, cell phone, U.S.
July 29, 2004Worldwide subscriber numbers projected to jump from 1.5 billion in 2004 to more than 2.5 billion in 2009, fueled by CDMA.TAGS:CDMA, TDMA, GSM, study, subscriber, India, Europe, cell phone