Abstract:
A method of operating an internet-based telephony system comprises (1) determining that a telephony device associated with a customer of the internet-based telephony system has access to service of the internet-based telephony system; (2) sending a first location update signal to a public land mobile network associated with the customer; (3) receiving an indication that the public land mobile network associated with the customer no longer considers the internet-based telephony system as being the network visited by the telephony device associated with the customer; (4) determining the telephony device associated with the customer and the internet-based telephony system are in data communication, and (5) sending a second location update signal to the public land mobile network associated with the customer to register again the internet-based telephony system as the network visited by the telephony device associated with the customer.
Abstract:
A method of operating an internet-based telephony system (20) comprises determining that a telephony device (30) associated with a customer has access to service to the internet-based telephony system (20); and sending a location update signal to a public land mobile network (32) associated with the customer. The location update signal is configured to include an identification of the internet-based telephony system (20) as a network visited by the telephony device (30) associated with the customer. Upon the internet-based telephony system (20) receiving from the public land mobile network (32) an indication of an incoming communication directed to a called number associated with an account of the customer which includes the telephony device (30), the method further includes the internet-based telephony system (20) providing the public land mobile network (32) with a roaming number for the telephony device, and upon receiving the incoming communication and the roaming number from the public land mobile network (32), routing the communication through the Internet to a device included in the customer's account.