Patent ID: 8300634

Claim:
A mobile audio cellular communications device comprising: a processing circuit configured to respond to a telephone number connection request, for an endpoint telephone number that corresponds to a remote communications endpoint, by, in a first mode, sending a connection request to prompt a PSTN to route the connection request according to the endpoint telephone number, and in a second mode, contacting an authentication server using an Internet connection and providing the endpoint telephone number and security data to the authentication server via the Internet connection, receiving, from the authentication server, a routing telephone number for a call-routing provider responsive to the mobile audio cellular communications device being authenticated, sending a connection request to prompt a PSTN to route the connection request according to the received routing telephone number, and establishing audio communications with the remote communications endpoint over a connection with the call-routing provider, based on the provided endpoint telephone number and security data as provided from the authentication server to the call-routing provider and stored at a call routing platform.