Patent ID: 8532085

Claim:
A method, comprising: receiving data representative of a user logging in from a first telecommunication device at a first cluster of a multiple cluster telecommunication network; determining a directory number for the user; associating the directory number for the user with the first telecommunication device; registering the directory number for the user and the first telecommunication device with a first call control agent association with the first telecommunication cluster; communicating data associating the directory number for the user with the first user device and the first call control cluster to at least a second telecommunication cluster of the multiple cluster telecommunication network; routing an incoming connection request for the registered directory number to the first telecommunication device via the first call control agent associated with the first call control cluster; deregistering the directory number and associated first telecommunication device corresponding to the user with the first call control agent of the first cluster in accordance with received session termination data, wherein the session termination data corresponds to one of a group consisting of a time expiration signal and logout information received from the associated user; communicating deregistration data corresponding to the deregistered directory number to the at least a second cluster of the telecommunications network; and routing an incoming connection request associated with the deregistered directory number to a default telecommunication device of the associated user in accordance with default registration data.