I think Fabien is misinterpreting the part which he sees as "video conferencing." Nedry is talking to a guy on a regular phone line. He's just watching a security camera feed from the dock where the guy is.
Nedry doesn't have a camera on his end, and he's talking through a headset. Maybe guy at the harbor just knows where the closed circuit camera is? Since it's just quicktime anyway, I guess we'll never know what they intended it to be unless someone asks the director.