IDENTIFYING THE SOURCE AND DESTINATION SITES FOR A VOIP CALL WITH DYNAMIC-IP ADDRESS END POINTS

• US 20170366503A1
• Filed: 06/17/2016
• Published: 12/21/2017
• Est. Priority Date: 06/17/2016
• Status: Active Grant

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Lee, Herman H., Napoli, Angelo, Chao, Chin-Wang, Patel, Himali, Huang, Yean-Ming, Shaw, Melody
• Granted Patent: US 10,263,954 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 2101/604 Address structures or formats
• CPC Class Codes: H04L 2101/659 Internet protocol version 6 [IPv6] addresses
• CPC Class Codes: H04L 61/5007 Internet protocol [IP] addresses
• CPC Class Codes: H04L 65/1036 at the edge
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04M 15/41 Billing record details, i.e. parameters, identifiers, structure of call data record [CDR]
• CPC Class Codes: H04M 15/56 for VoIP communications
• CPC Class Codes: H04M 3/2218 Call detail recording
• CPC Class Codes: H04M 3/2227 Quality of service monitoring
• CPC Class Codes: H04M 7/006 Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42

Abstract

In a voice-over-IP communications network, call data records include dynamically assigned IP signaling addresses such as IPv6 signaling addresses used in provisioning communications sessions. Those dynamically assigned IP signaling addresses are computed from customer site identification codes using a reversible algorithm. The algorithm can then be reversed to compute a customer site identification code from an IP signaling address contained in a call data record, allowing the communications network provider to perform quality monitoring and diagnostics based on call data records.

Claims

1. A voice-over-IP communications network comprising a plurality of session border gateways, each session border gateway connected to a customer edge router of a customer site assigned an IPv6 signaling address, the IPv6 signaling address containing information uniquely and independently identifying the customer site without reference to a lookup table.

2. The voice-over-IP communications network of claim 1, wherein the IPv6 signaling address is reversibly derivable from a unique identifier of the customer site using an algorithm containing only string operations and conversion between numeral systems having different bases.

3. The voice-over-IP communications network of claim 1, further comprising:

a provisioning system including a processor and a computer readable storage device having computer readable instructions stored thereon that, when executed by the processor, cause the processor to perform operations comprising;

translating a decimal number identifying the customer site to a hexadecimal number;

adding strings to the hexadecimal number to create a standard-format extended unique identifier; and

prepending the extended unique identifier with an IPv6 prefix to create the IPv6 signaling address.

4. The voice-over-IP communications network of claim 3, wherein the IPv6 prefix identifies a network provider of the voice-over-IP communications network.

5. The voice-over-IP communications network of claim 3, wherein the decimal number identifying the customer site is a 9-digit number generated by the provisioning system.

6. The voice-over-IP communications network of claim 1, further comprising:

a call data record processing system including a processor and a computer readable storage device having computer readable instructions stored thereon that, when executed by the processor, cause the processor to perform operations comprising;

receiving a call data record associated with a call having at least one end point at the customer site, the call data record including call quality metrics associated with the call and further including the IPv6 signaling address assigned to the customer site;

determining an identity of the customer site from the IPv6 signaling address; and

associating the call quality metrics with the customer site.

7. The voice-over-IP communications network of claim 6, the operations further comprising:

presenting the call quality metrics per customer site via a graphical user interface.

8. The voice-over-IP communications network of claim 1, wherein the IPv6 signaling address is generated from a unique identifier of the customer site using a reversible algorithm.

9. A method for provisioning a link between a session border gateway and a customer gateway router in a voice-over-IP communications network, comprising:

receiving a unique identifier of a customer site at which the customer gateway router is located;

computing an IP signaling address from the unique identifier of the customer site using a reversible algorithm; and

setting up the session border gateway and the customer edge router with the IP signaling address.

10. The method of claim 9, wherein:

the reversible algorithm contains only string operations and conversion between numeral systems having different bases.

11. The method of claim 9, wherein the unique identifier is a decimal number, the IP signaling address is an IPv6 signaling address, and computing the IPv6 signaling address using a reversible algorithm further comprises:

translating the decimal number to a hexadecimal number;

adding strings to the hexadecimal number to create a standard-format extended unique identifier; and

prepending the extended unique identifier with an IPv6 prefix to create the IPv6 signaling address.

12. The method of claim 11, wherein the IPv6 prefix identifies a network provider of the voice-over-IP communications network.

13. The method of claim 9, wherein computing the IP signaling address from the unique identifier using a reversible algorithm further comprises computing the signaling address without reference to a lookup table.

14. The method of claim 9, wherein the unique identifier of the customer site is a 9-digit number generated by a voice-over-IP provisioning system of the voice-over-IP communications network.

15. A method for generating call data for a call made in a voice-over-IP communications network, comprising:

determining a unique identifier for a voice-over-IP customer site;

computing a signaling address from the unique identifier using a reversible algorithm;

provisioning a link between a session border gateway of the voice-over-IP communications network and a customer gateway router at the voice-over-IP customer site using the signaling address;

receiving a call data record for a call placed over the link, the call data record including the signaling address; and

determining the unique identifier for the voice-over-IP customer site by applying an inverse of the reversible algorithm to the signaling address.

16. The method of claim 15, wherein computing a signaling address further comprises computing an IPv6 signaling address.

17. The method of claim 15, wherein the unique identifier is a decimal number and computing a signaling address further comprises:

translating the decimal number to a hexadecimal number;

adding strings to hexadecimal number to create a standard-format extended unique identifier; and

prepending the extended unique identifier with an IPv6 prefix to create a unique IPv6 signaling address.

18. The method of claim 17, wherein the IPv6 prefix identifies a network provider of the voice-over-IP communications network.

19. The method of claim 15, wherein computing a signaling address from the unique identifier using a reversible algorithm further comprises computing the signaling address without reference to a lookup table.

20. The method of claim 15, further comprising:

associating call quality metrics and call problems with the voice-over-IP customer site.