Android NDEF Push Protocol Specification

Android NDEF Push Protocol Specification The NDEF Push Protocol (NPP) is a simple protocol built on top of LLCP which is designed to push an NDEF message from one device to another. The procedure itself is one way and defines pushing NDEF messages from a client to a server. A device that supports NPP MUST always run an NPP server, and MAY run the NPP client procedure when it has an NDEF message available to push. This allows for bi-directional NDEF exchange between NPP devices.