37
Installation, maintenance, and upgrade of turn-ups and online operational systems for voice, data and video telecommunications and data network hardware and software
38
Customer support services, namely providing information concerning the installation, maintenance, and upgrade of online operational systems for voice, data and video telecommunications and data network hardware and software, provided onsite and/or by means of a world wide computer network; e-mail, voice mail, telephone and cellular telephone and facsimile transmission
42
Technical support, provided by means of a world wide computer network; e-mail, voice mail, telephone and cellular telephone and facsimile transmission, related to the maintenance, installation, and upgrade of online operational systems for voice, data and video telecommunications and data network hardware and software
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