Tone-based registration for a mobile user of a communications system

A communication system for registering a user, the communication system comprising:

• a portable user device configured to receive a user registration input, automatically transfer audible call tones from the portable user device to a telephone device in response to the user registration input to initiate a telephone call in the communication system and to transfer audible user identification tones from the portable user device and over the telephone call;
• and
• a control system configured to answer the telephone call from the portable user device, receive the audible user identification tones, receive a location indicator, and in response, process the audible user identification tones and the location indicator, generate a route instruction, and transfer the route instruction to the communication system, wherein the route instruction routes telephone calls for the user to a communication device associated with the location indicator.

A portable user device for registering a user with a communication system, the portable user device comprising:

• a device controller configured to receive a user registration input, and in response, transfer a call signal and transfer a user identification signal;
• and
• a tone generator configured to receive the call signal, and in response, automatically transfer audible call tones from the portable user device to a telephone device to initiate a telephone call in the communication system, to receive the user identification signal from the device controller, and in response, transfer audible user identification tones from the portable user device to the telephone device and over the telephone call.