NETWORK-BASED SYSTEM FOR REROUTING PHONE CALLS FROM PHONE NETWORKS TO VOIP CLIENTS FOR ROAMERS AND SUBSCRIBERS WHO DO NOT ANSWER

摘要

A system, method, computer product and service are provided which, when a subscriber's VoIP client is online and the subscriber's non-VoIP wireless or fixed line number is called, will automatically route the call over IP to the subscriber's VoIP client. This routing may be performed by the subscriber's wireless or fixed line home operator and can be conditioned to depend on whether the non-VoIP number is roaming or not answering.