IP Library Granted Patent US 12,244,488
Granted Patent B2
US 12,244,488 · App. 18/598,681 · Granted Mar 4, 2025

Carrier identification code delivery to an egress network of a telecommunications network

Inventor: David A. Tschirhart (Dale, TX)
Assignee: Level 3 Communications, LLC
H04L45/245H04J3/00H04L65/1026H04L65/1069H04L65/1104H04L69/22H04L2101/385
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Quick Facts
Patent No.
US 12,244,488
App. No.
18/598,681
Granted
Mar 4, 2025
Kind
B2
Abstract

Aspects of the present disclosure involve systems, methods, computer program products, and the like, for utilizing a CIC value field in signaling information of a communication to provide an identification of the ingress network to an egress or receiving network of a long distance telecommunications network. The system and method provides for the provisioning of a signaling CIC for an ingress trunkgroup or network to a telecommunications network for downstream signaling purposes by overriding a received CIC value with a provisioned CIC value specific to the ingress network. This provisioned CIC value identifies the ingress network to the long distance network to the egress network for use by the egress network.

Claims (35)

1. A method for routing a communication in a telecommunications network, the method comprising:

receiving a communication from an ingress network to a telecommunications network, the communication comprising a upstream carrier identification code (CIC) value associated with an upstream network;

replacing the upstream CIC value with a provisioned ingress network specific CIC value in the communication; and

transmitting the communication to an egress network of the telecommunications network with the provisioned ingress network specific CIC value in the communication.

2. The method of claim 1 wherein the communication comprises a time-division multiplex (TDM)-based networking communication and signaling information comprises a Signaling System No. 7 (SS7) Integrated Services Digital Network User Part (ISUP) initial address message (IAM).

3. The method of claim 2 wherein the signaling information further comprises a carrier identification parameter (CIP) field of the SS7 ISUP IAM message.

4. The method of claim 1 wherein the communication comprises an Internet Protocol (IP)-based networking communication and signaling information comprises a Session Initiation Protocol (SIP) INVITE message.

5. The method of claim 4 wherein the signaling information further comprises a request uniform resource indicator (R-URI) header of the SIP INVITE message.

6. The method of claim 5 further comprising:

provisioning the ingress network specific CIC value based on an identification of the ingress network associated with the trunkgroup, the ingress network specific CIC value unique to the trunkgroup.

7. The method of claim 1 further comprising:

identifying the ingress network to the telecommunications network by receiving the communication on a trunkgroup connection to the telecommunications network, the trunkgroup associated with the ingress network.

8. A networking device comprising:

at least one communication port for receiving a communication from an ingress network to a telecommunications network, the communication comprising a upstream carrier identification code (CIC) value associated with an upstream network;

a processing device; and

a computer-readable medium connected to the processing device configured to store information and instructions that, when executed by the processing device, performs the operations of:

replacing the upstream CIC value with a provisioned ingress network specific CIC value in the communication; and

transmitting the communication to an egress network of the telecommunications network with the provisioned ingress network specific CIC value in signaling information of the communication.

9. The networking device of claim 8 wherein the communication comprises a time-division multiplex (TDM)-based networking communication and the signaling information comprises a Signaling System No. 7 (SS7) Integrated Services Digital Network User Part (ISUP) initial address message (IAM).

10. The networking device of claim 9 wherein the signaling information further comprises a carrier identification parameter (CIP) field of the SS7 ISUP IAM message.

11. The networking device of claim 8 wherein the communication comprises an Internet Protocol (IP)-based networking communication and the signaling information comprises a Session Initiation Protocol (SIP) INVITE message.

12. The networking device of claim 11 wherein the signaling information further comprises a request uniform resource indicator (R-URI) header of the SIP INVITE message.

13. The networking device of claim 8 wherein the processing device further performs the operations of:

identifying the ingress network to the telecommunications network by receiving the communication on a trunkgroup connection to the telecommunications network, the trunkgroup associated with the ingress network.

14. The networking device of claim 13 wherein the processing device further performs the operations of:

provisioning the ingress network specific CIC value based on an identification of the ingress network associated with the trunkgroup, the ingress network specific CIC value unique to the trunkgroup.

15. A telecommunications network comprising:

an ingress device receiving a communication from an ingress network to a telecommunications network, the communication comprising a upstream carrier identification code (CIC) value associated with an upstream network; and

a routing engine in communication with the ingress device providing an egress network identification for the received communication, wherein the ingress device:

replaces the upstream CIC value with a provisioned ingress network specific CIC value in the communication; and

transmits the communication to the egress network based at least on the received egress network identification with the provisioned ingress network specific CIC value in signaling information of the communication.

16. The telecommunications network of claim 15 wherein the communication comprises a time-division multiplex (TDM)-based networking communication and the signaling information comprises a Signaling System No. 7 (SS7) Integrated Services Digital Network User Part (ISUP) initial address message (IAM).

17. The telecommunications network of claim 16 wherein the signaling information further comprises a carrier identification parameter (CIP) field of the SS7 ISUP IAM message.

18. The telecommunications network of claim 15 wherein the communication comprises an Internet Protocol (IP)-based networking communication and the signaling information comprises a Session Initiation Protocol (SIP) INVITE message.

19. The telecommunications network of claim 18 wherein the signaling information further comprises a request uniform resource indicator (R-URI) header of the SIP INVITE message.

Assignments (3)
NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY (SECOND LIEN) Recorded Nov 4, 2024
From: LEVEL 3 COMMUNICATIONS, LLC; GLOBAL CROSSING TELECOMMUNICATIONS, INC
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 069295/0749 →
NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY (FIRST LIEN) Recorded Nov 4, 2024
From: LEVEL 3 COMMUNICATIONS, LLC; GLOBAL CROSSING TELECOMMUNICATIONS, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 069295/0858 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 12, 2024
From: TSCHIRHART, DAVID A.
To: LEVEL 3 COMMUNICATIONS, LLC
Reel/Frame 066736/0996 →
Continuity (4)
Continuation 17557743 · Dec 21, 2021
Continuation 15385635 · Dec 20, 2016
Provisional Application 62414442 · Oct 28, 2016
Related Publication 20240214305A1 · Jun 27, 2024
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