OPTEL

tablet based teleconferencing equipment, namely, voice and data modems, writing tablets and computer software for use in interactive teleconferencing, excluding voice mail, email and other messaging hardware and software

installation, maintenance and repair of telecommunications and teleconferencing systems including voice and data modems, writing tablets and computer software for use therein; and of cable television broadcasting and telecommunications systems; all of the foregoing excluding voice mail, email and other messaging services

telecommunications services, namely, personal communications services, namely, switched local and long distance telephone service, audio and video teleconferencing services, and cable television broadcasting services; all of the foregoing excluding voice mail, email and other messaging services

technical consulting and professional consulting services relating to telecommunications and telephone conferencing and computer software for use therein; providing closed circuit television security services; all of the foregoing excluding voice mail, email and other messaging services