Text messaging and instant messaging are similar because they are both used to send text messages. However, text messaging ("texting") uses the cellular phone service, whereas instant messaging ...

MANHASSET, N.Y. – A trio of cell phone giants this week announced plans to define universal specifications for mobile instant-messaging services. Ericsson, Motorola and Nokia said their Wireless ...

Unified messaging (UM) enables access to faxes, voice mail and e-mail from a single mailbox that users can reach either by telephone or a computer equipped with speakers. Computer users can select and ...