Method of routing interLATA network traffic

• US 7,310,418 B2
• Filed: 07/09/2003
• Issued: 12/18/2007
• Est. Priority Date: 12/12/1996
• Status: Expired due to Fees

• Current Assignee: SBC Properties, L.P. (AT&T, Inc.)
• Original Assignee: SBC Properties, L.P. (AT&T, Inc.)
• Inventors: Madoch, Pitsa, Moss, John Wesley, Ebel, Richard John, Steffgen, Gerald Joseph, Donoso, Carlos H
• Primary Examiner(s): Deane, Jr., William J.
• Application Number:
  US10/616,135
• Publication Number:
  US 20050025137A1
• Time in Patent Office: 1,623 Days
• Field of Search: 379/220.01, 379/219, 37922108-2211, 379/221.15, 379/229, 379/230, 379/207.02
• US Class Current: 379/220.01
• CPC Class Codes: H04M 2207/12 intelligent networks
• CPC Class Codes: H04M 3/44 Additional connecting arrangements for providing access to frequently-wanted subscribers, e.g. abbreviated dialling at the subscriber's set H04M1/27; automatic redialling H04M3/424
• CPC Class Codes: H04M 7/009 in systems involving PBX or KTS networks
• CPC Class Codes: H04Q 3/0045 involving hybrid, i.e. a mixture of public and private, or multi-vendor systems

Abstract

A method of routing interLATA network traffic includes the steps of receiving a number of dialed digits at a first service switching point (18) in a first virtual network (10). Then a query is sent to a service control point (24). When the dialed digits result in the call to a facility (32) in a second virtual network (26) connected to the first virtual network (10) by a tie line (38), the call is routed to a hub service switching point (34) in the second virtual network (26) over the tie line (38).

Claims

1. A method of routing interLata network traffic, comprising:

receiving a query from a first service switching point at a switching control point;

determining, based on the query, if a call is an interLATA call;

when the call is the interLATA call, sending a routing message to the first service switching point, from the switching control point, the routing message identifying a hub service switching point;

receiving a query from the hub service switching point at the switching control point;

determining, based on the query, if the call is to a second virtual network; and

when the call is to the second virtual network, sending a response to route the call to a second hub service switching point in a second local access and transport area (LATA).

2. The method of claim 1, wherein sending the routing message further comprises sending a translated routing number.

3. The method of claim 1, wherein sending the response to route the call further comprises sending a primary trunk group as part of the response.

4. The method of claim 1, wherein sending the response to route the call further comprises sending an abbreviated dial code as part of the response.

5. The method of claim 1, further comprising:

receiving a query from a second hub service switching point at the switching control point; and

sending a response that includes a routing instruction.

6. The method of claim 1, further comprising:

receiving a query from a hub service switching point at the switching control point;

determining, based on the query, if the call is to an out of network call; and

when the call is the out of network call, sending a routing response to an interexchange carrier point of presence.

7. A method of routing interLATA network Traffic, comprising:

determining if an interLATA call is between a first virtual private network and a second virtual private network, the first and second virtual private networks facilitating at least one of abbreviated dialing or intercom dialing;

when the interLATA call is between the first virtual private network and second virtual private network, routing the interLATA call over a trunk group; and

when the interLATA call is not between the first virtual private network and the second virtual private network, routing the interLATA call to an interexchange carrier point of presence.

8. The method of claim 7, wherein routing the interLATA call further comprises:

routing the interLATA call to a first hub service switching point; and

routing the interLATA call over the trunk group to a second hub service switching point.

9. The method of claim 7, wherein routing the interLATA call to the interexchange carrier point of presence further comprises routing the interLATA call to a first hub service switching point.

10. A method of routing interLATA network traffic, comprising:

receiving a first query;

determining, based on the first query, if the call is an interLATA call;

when the call is the interLATA call, sending a routing message to a first point from a control point, the routing message identifying a hub point;

receiving a second query from the hub point at the control point;

determining, based on the second query, if the call is to a virtual private network; and

when the call is to the virtual private network, sending a response to route the call to a second point in a LATA.

11. The method of claim 10, further comprising facilitating at least one of abbreviated dialing or intercom dialing between the virtual private network and another virtual private network.