Vonage America Inc.

Soheil Karshenas Najafabadi

Jaya Meghani

Boaz Zehavi

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.

Method and apparatus for intra-network roaming for IP telephony network

A method of operating an internet-based telephony system () comprises determining that a telephony device () associated with a customer has access to service to the internet-based telephony system (); and sending a location update signal to a public land mobile network () associated with the customer. The location update signal is configured to include an identification of the internet-based telephony system () as a network visited by the telephony device () associated with the customer. Upon the internet-based telephony system () receiving from the public land mobile network () an indication of an incoming communication directed to a called number associated with an account of the customer which includes the telephony device (), the method further includes the internet-based telephony system () providing the public land mobile network () with a roaming number for the telephony device, and upon receiving the incoming communication and the roaming number from the public land mobile network (), routing the communication through the Internet to a device included in the customer's account.

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Kew Gardens, NY, United States of America

Soheil Karshenas Najafabadi