This plugin suite would make Transporter obsolete if it could do server to server teleportation. To do this, the recommended way is bungeecoord which can either be directly integrated and available if the server is a bungeecoord client or can be dynamically implemented through allowing a portal to call a server command on the player that passed through it.

For instance using /send %player% server as a command to be called by the server when a player uses the server would allow the bungeecoord server to send the player to the destination by replacing %player%.

Direct implementation would be better as it could instead be implemented in the core plugin but commands is a quick and easy simple solution.

Assuming this is super out of date so i'm gonna close it.