US 6,982,985 B1 | ||
Interaction of VoIP calls and cellular networks | ||
Peter Bohacek, La Honda, Calif. (US); and David Sanders, Plano, Tex. (US) | ||
Assigned to Verso Technologies, Inc., Atlanta, Ga. (US) | ||
Filed on Sep. 01, 2000, as Appl. No. 9/653,680. | ||
Claims priority of provisional application 60/152039, filed on Sep. 02, 1999. | ||
Int. Cl. H04Q 7/24 (2006.01); H04L 12/28 (2006.01); H04L 12/66 (2006.01); H04M 11/00 (2006.01); H04M 7/00 (2006.01) |
U.S. Cl. 370—410 | 8 Claims |
1. A method of telephonic communication to a wireless Subscriber over Internet Protocol and wireless networks, comprising
the steps of:
a caller initiating a communication and signal with a PBX or other phone, such as a home telephone connecting to a CO;
the PBX or CO routing the signal to a first gateway (GW-1);
the first gateway (GW-1) requesting routing information from a Command Center (CC);
the CC querying through an SS7 backbone to a Home Location Register (HLR) for routing information;
a Visited Mobile (Services) Switching Center (VMSC) assigning a temporary routing number N for the signal and passing the
temporary routing number N back to the HLR;
the HLR returning the temporary routing number N via SS7 backbone to the CC;
the CC informing a second gateway (GW-2) of an incoming connection;
the GW-2 informing the CC of its readiness to receive the incoming connection;
the CC returning instructions and a VoIP IP address to GW-1;
GW-1 establishing the connection to GW-2;
GW-2 routing the connection to the VMSC; and
the VMSC processing the connection to complete the communication to a wireless subscriber.
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