Peer-to-peer connection methods and systems are provided. A first client device receives a request to initiate a peer-to-peer connection with a second client device. Responsive to the request, the first client device presents an offer message that includes first address information associated with the first client device. A first mobile device captures the presented offer message and sends the captured offer message to the second client device via a wireless communication network. The first client device receives, via the first mobile device, a response message over the wireless communication network from the second client device. The response message includes second address information associated with the second client device. The first client device initiates the peer-to-peer connection with the second client device, responsive to the second address information in the received response message.