System and method for routing calls in a wireless network using a single point of contact

• US 20050232225A1
• Filed: 04/19/2004
• Published: 10/20/2005
• Est. Priority Date: 04/19/2004
• Status: Active Grant

• Current Assignee: RPX Corporation
• Original Assignee: Alcatel-Lucent USA, Inc. (Nokia Corporation)
• Inventors: Pelaez, Mariana Benitez, Verma, Kamal K., Halsell, Victoria M., Verma, Charu
• Granted Patent: US 7,512,090 B2
• Time in Patent Office: Days
• US Class Current: 370/351
• CPC Class Codes: H04L 2101/38 Telephone uniform resource identifier [URI]
• CPC Class Codes: H04L 2101/385 Uniform resource identifier for session initiation protocol [SIP URI]
• CPC Class Codes: H04L 2101/65 Telephone numbers
• CPC Class Codes: H04L 61/106 across networks, e.g. mapping telephone numbers to data network addresses
• CPC Class Codes: H04L 61/30 Managing network names, e.g. use of aliases or nicknames name-to-address mapping H04L61/45
• CPC Class Codes: H04L 61/301 Name conversion
• CPC Class Codes: H04L 65/1016 IP multimedia subsystem [IMS]
• CPC Class Codes: H04L 65/1046 Call controllers; Call servers
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04M 2203/2066 Call type detection of indication, e.g. voice or fax, mobile of fixed, PSTN or IP
• CPC Class Codes: H04M 3/42263 where the same subscriber uses different terminals, i.e. nomadism
• CPC Class Codes: H04Q 2213/13141 Hunting for free outlet, circuit or channel
• CPC Class Codes: H04Q 2213/13178 Control signals
• CPC Class Codes: H04Q 2213/13196 Connection circuit/link/trunk/junction, bridge, router, gateway
• CPC Class Codes: H04Q 2213/13248 Multimedia
• CPC Class Codes: H04Q 2213/13251 Restricted service, class of service
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support

Abstract

A system and method of routing calls made to a called party Subscriber Universal Destination Identifier (SUDI) in a wireless communications network is provided. The method includes determining the call type, selecting a call-type-specific destination identifier for the call from a plurality of called party destination identifiers based on the call type, and routing the call to the called party using the selected call-type-specific destination identifier. The step of determining the call type can include determining the call protocol, determining the media type, and determining the call type from the call protocol and the media type. The system includes means for determining the call type, means for selecting a call-type-specific destination identifier for the call from a plurality of called party destination identifiers based on the call type, and means for routing the call to the called party using the selected call-type-specific destination identifier.

Claims

1. A method of routing a call in a wireless communications network made to a called party Subscriber Universal Destination Identifier (SUDI) comprising:

determining the call type;

selecting a call-type-specific destination identifier for the call from a plurality of called party destination identifiers based on the call type; and

routing the call to the called party using the selected call-type-specific destination identifier.

2. The method defined in claim 1 wherein the step of determining the call type further comprises:

determining the call protocol; and

determining the call type from the call protocol.

3. The method defined in claim 1 wherein the step of determining the call type further comprises:

determining the call protocol;

determining the media type; and

determining the call type from the call protocol and the media type.

4. The method defined in claim 1 wherein the SUDI is a Uniform Resource Identifier (URI).

5. The method defined in claim 1 wherein the SUDI is a Uniform Resource Locator (URL).

6. The method defined in claim 1 wherein the SUDI is a Uniform Resource Name (URN).

7. The method defined in claim 1 wherein the SUDI is a telephone number.

8. A system for routing a call in a wireless communications network made to a called party Subscriber Universal Destination Identifier (SUDI) comprising:

means for determining the call type;

means for selecting a call-type-specific destination identifier for the call from a plurality of called party destination identifiers based on the call type; and

means for routing the call to the called party using the selected call-type-specific destination identifier.

9. The system defined in claim 8 further comprising:

means for determining the call protocol; and

means for determining the call type from the call protocol.

10. The system defined in claim 8 further comprising:

means for determining the call protocol;

means for determining the media type; and

means for determining the call type from the call protocol and the media type.

11. The system defined in claim 8 wherein the SUDI is a Uniform Resource Identifier (URI).

12. The system defined in claim 8 wherein the SUDI is a Uniform Resource Locator (URL).

13. The system defined in claim 8 wherein the SUDI is a Uniform Resource Name (URN).

14. The system defined in claim 8 wherein the SUDI is a telephone number.

15. A method of routing a call in a wireless communications network made to a called party Subscriber Universal Destination Identifier (SUDI) comprising:

determining the call protocol;

determining the media type;

determining the call type from the call protocol and the media type;

selecting a call-type-specific destination identifier for the call from a plurality of called party destination identifiers based on the call type; and

routing the call to the called party using the selected call-type-specific destination identifier.