A peer-to-peer network comprises a plurality of intelligent terminal nodes, each intelligent terminal node being operable to establish, maintain, and tear-down communication sessions with another intelligent terminal node, a plurality of network service nodes coupled to the plurality of intelligent terminal nodes, the plurality of network service nodes comprise at least one of the plurality of intelligent terminal nodes, at least one user P2P function module operable to store, locate and distribute service resource information related to user policies, and at least one network P2P function module operable to store, locate and distribute service resource information related to operator provider policies, and operable to exert stricter security control than the at least one user P2P function module.