If you are researching servers capable of handling 2000+ users, look for these features mentioned in the technical literature:
: Systems like those discussed by TISPAN/ETSI focus on integrating IPTV into large-scale Next Generation Networks (NGN). Download SERVER IPTV 2000 USERS pdf
While there isn't a single official "SERVER IPTV 2000 USERS" document, you can download several technical guides and account lists from that match your criteria for IPTV server management and user data: Recommended PDF Downloads If you are researching servers capable of handling