The Ektaplus, in theory, does not require a dedicated server; it can manage traffic from as many as four lanes at once.
RTSP requires a more specialized server since this is a whole other protocol.
It does not require a dedicated server - users have reported successful deployment in both shared environments and multiple machine clusters.
Also, IP fax does not require a dedicated server or make use of the office mail server.
Devices can talk directly to each other without requiring a server.
Thin clients rely on the central server for the processing and thus require a fast server.
Since pre-processing systems do not require a server to apply the templates at request time, they may also exist purely as design-time tools.
JUpdater requires a central server that contains information about the latest version.
However, usually peer-to-peer file sharing does not require a dedicated server.
The game supports dial-up connections and does not require a server for races.