IP Library Granted Patent US 9,591,468
Granted Patent B2
US 9,591,468 · App. 14/537,778 · Granted Mar 7, 2017

System and method for monitoring communications in a network

Inventors: Derek Mitsumori (Lexington, MA); Michael Baj (Newton, MA)
Assignee: LEVEL 3 COMMUNICATIONS, LLC
H04W4/26H04L12/14H04M15/44H04M15/55H04M15/56H04M15/58H04M15/60H04M15/8016H04M15/8044H04M15/8214H04M15/8228
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Quick Facts
Patent No.
US 9,591,468
App. No.
14/537,778
Granted
Mar 7, 2017
Kind
B2
Abstract

Methods and systems are described for monitoring communications in a packet-switched network. More specifically, the system initiates a communication between a network endpoint associated with a call mediator and at least a second network endpoint; records, at the call mediator, information associated with the communication; and upon termination of the communication, communicates, from the call mediator to an enterprise gatekeeper, the information associated with the communication.

Claims (24)

1. A system comprising:

a Voice over Internet Protocol (VoIP) network comprising:

an enterprise gatekeeper; and

an authentication server;

a first customer site comprising a first call mediator communicably coupled to a first endpoint;

a second customer site comprising a second call mediator communicably coupled to a second endpoint;

wherein, in response to initiation of a communication from the first endpoint to the second endpoint, the enterprise gatekeeper is configured to perform the steps of:

receiving an accept request message from the first call mediator for routing the communication from the first endpoint to the second endpoint;

determining whether sufficient network resources are available to route the communication from the first endpoint to the second endpoint:

if sufficient network resources are determined to be unavailable, sending an accept reject message to the first call mediator indicating that the VoIP network is unavailable;

if sufficient network resources are determined to be available, sending a confirmation message to the first call mediator that includes an identifying network address of the second call mediator;

upon termination of the communication,

from the first call mediator, receiving a first call record associated with the communication; and

from the second call mediator, receiving a second call record associated with the communication; and

wherein the authentication server is configured to process the first call record and the second call record using Remote Authentication Dial-In User Service (RADIUS) protocol to generate a RADIUS record of the communication.

2. The system as recited in claim 1 , wherein the accept reject message comprises an instruction for the first call mediator to route the communication via a Public Switched Telephone Network (PSTN).

3. The system as recited in claim 2 , wherein the first call mediator is further instructed to send the communication to an overflow gateway to route the communication via the PSTN.

4. The system as recited in claim 1 , wherein the VoIP network further comprises:

a billing server configured to process the RADIUS record to generate a bill based on the first call record and the second call record.

5. The system as recited in claim 1 , wherein the enterprise gatekeeper is configured to receive an accept request message from the second call mediator for routing the communication from the first endpoint to the second endpoint.

6. The system as recited in claim 5 , wherein the enterprise gatekeeper is configured to, in response to receiving the accept request message from the second call mediator, determine whether sufficient network resources are available to route the communication from the first endpoint to the second endpoint.

7. The system as recited in claim 6 , wherein the enterprise gatekeeper is configured to:

if sufficient network resources are determined to be unavailable, send an accept reject message to the second call mediator indicating that the VoIP network is unavailable;

if sufficient network resources are determined to be available, send a confirmation message to the second call mediator.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 18, 2014
From: BAJ, MICHAEL
To: LEVEL 3 COMMUNICATIONS, LLC
Reel/Frame 034199/0073 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 18, 2014
From: MITSUMORI, DEREK
To: LEVEL 3 COMMUNICATIONS, LLC
Reel/Frame 034199/0123 →
Continuity (4)
Continuation 12804706 · Jul 26, 2010
Continuation 10629521 · Jul 29, 2003
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