delivery of messages by electronic transmission; electronic transmission of messages and data; electronic voice messaging, namely, the recording, storage and subsequent transmission of voice messages by cell phone and telephone; providing telecommunications connections to a global computer network for use by emergency administration personnel, public service access providers, public safety agencies and commercial firms providing emergency services; public notification of emergency situations via cell phone and telephone; outcall notification services, namely providing private information and communicating critical emergency information about subscribers to public safety agencies, responding field units, and notifying designated persons identified by subscribers