I

wireless voice, data and information transmitters and receivers; server and client software for wireless data communications; printer interface hardware, namely, cables; printer interface and driver software

installation of wireless computer messaging systems

training in the use of wireless computer messaging systems

technical support services, namely, troubleshooting as it relates to computer software for use in wireless and mobile access to office networks and as it relates to printer interface and driver software, via the global computer network, telephone, and E-mail