A system and a method enabling a mobile user-terminal to participate as a peer in a peer-to-peer network, the system including a mobile user-terminal and a network device, the network device including a peer-communication module operative to communicate as a peer in a peer-to-peer network, a terminal-communication module operative to communicate with a user-terminal device, and a proxy module operative to perform peer operations in the peer-to-peer network on behalf of the user-terminal device.