42 Custom design, planning, development, engineering, integration, implementation services relating to telephony systems, wired and wireless communications network infrastructure, information technology platforms and portals, telecommunications systems, network infrastructure disaster recovery planning, and computer software in the nature of security, voice, data, video, wired, wireless, and remote systems applications; consulting services relating to network infrastructure disaster recovery planning and computer software in the nature of security, voice, data, video, wired, wireless, and remote systems applications; consulting services relating to the design, development, planning, engineering, implementation and monitoring for technical purposes of telephony systems, wired and wireless communications network infrastructure, information technology platforms and portals and telecommunications systems; application service provider, namely, providing, hosting, managing, developing, and maintaining applications, telephony applications, software, websites, and databases in the fields of wired and wireless communication, security, mobile information access, and remote data management for wired and wireless delivery of content to handheld computers, laptops and mobile electronic devices; maintenance of computer software in the nature of security, voice, data, video, wired, wireless, and remote systems applications; Network monitoring surveillance services, namely, computer network monitoring the system health and availability of communication infrastructure elements such as switches, routers, optical gear, security firewalls, gateways, PBXs, servers and applications that utilize such elements for others for technical purposes