Patent ID: 8811381

Claim:
A system for providing converged voice services, the system comprising: a service switching point (SSP) configured to: receive, via a public switched telephone network (PSTN), a call from a calling party to a first telephone number of a plurality of telephone numbers associated with a converged voice services subscriber, the plurality of telephone numbers further comprising a second telephone number; fire a termination attempt trigger (TAT) in response to receiving the call; an application server configured to: detect the TAT; and determine, in response to the TAT, that the subscriber has configured simultaneous ring services; send a message to the SSP instructing the SSP to forward the call to a voice over Internet Protocol (VoIP) switch; the VoIP switch configured to: receive the forwarded call from the SSP; send a first SIP INVITE, in response to receiving the forwarded call; wherein: the application server is further configured to: receive the first SIP INVITE; and send, in response to receiving the first SIP INVITE, a plurality of additional SIP INVITEs, the plurality of additional SIP INVITEs comprising an additional SIP INVITE corresponding to each of the plurality of telephone numbers and including a first additional SIP INVITE corresponding to the first telephone number and a second additional SIP INVITE corresponding to the second telephone number; and the VOIP switch is further configured to: receive each of the plurality of additional SIP INVITEs; create a plurality of call legs via the PSTN, the plurality of call legs comprising a call leg corresponding to each of the additional SIP INVITEs and including a first call leg to the first telephone number and a second call leg to the second telephone number; and connect the forwarded call with at least one of the call legs; and the VoIP switch is further configured to obtain, from a route server, routing information for at least one of the SIP INVITEs.