Patent attributes
A network node sets up a virtual connection in a network based on a virtual connection request initiated from an access port different from a first location previously associated with an account of a user. The network node includes a receiver for receiving a signaling message from the access port requesting the virtual connection. The signaling message has at least one field modified to include an address of the access port. The network node further includes a profile database and a registration server. The profile database stores a service policy associated with the user account. The registration server stores an address of the first location associated with the user account as a default registration, determines whether the user is authorized to establish the virtual connection based on the service policy, and replaces the first location address with the access port address when the user is authorized.