Proto-TURN

Sometimes, NAT does not allow direct communication between two peers. In such cases, a relay server is needed to relay the data between the peers. TURN is a protocol that allows the peers to communicate through a relay server.

https://www.rfc-editor.org/rfc/rfc8656.html

Adding dependency to project

[dependencies]
proto-turn = { git = "https://github.com/rapidrecast/proto-tower.git", subdir = "proto-turn" }