PATENT CLAIM ANALYSIS

Application Number: 15864853
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["379", "189000"]

Abstract:
There is a growing problem in correctional facility telecommunications systems in which parties on a voice call may connect inmate callers with restricted parties. Prison communication systems monitor calls to prevent such activity, but in Voice over Internet Protocol (VoIP) environments such systems may fail to detect this activity. The present disclosure provides details of a system and method for using SIP messages common in VoIP environments to detect illicit activity initiated by a party on a voice call within a controlled environment. Scenarios are detected in which a called party connects an inmate caller to a restricted party via three-way call conferencing, call forwarding, or other call features. Corrective actions are then taken when such activity is detected, such as call blocking or alerting officials illicit activity is occurring.

Claim (Index 13):
A method for detecting fraudulent activity in a communication system in a correctional facility, comprising:\n receiving a packet stream associated with a voice call utilizing voice over internet protocol (VoIP) between an inmate call party and an outside call party, the packet stream including a session initiation protocol (SIP) message stream; determining a call phase of the voice call, wherein the call phase is one of a call setup phase and a call established phase, the call established phase occurring after a successful end of the call setup phase; detecting that a message type associated with a first SIP message from the SIP message stream is one of a 181 Response or a 3xx Response during the call setup phase or that the message type is one of an INVITE or a REFER during the call established phase, wherein 3xx in the 3xx Response represents an integer between 300 and 399; and in response to the detecting, confirming that a disallowed third party has joined the voice call based at least on a first content associated with the first SIP message or a second content associated with a second SIP message from the SIP message stream, the second SIP message appearing after the first SIP message within the SIP message stream.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 86.0
- Lexical Diversity: 1.60227
- Patent Class: 379.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15457823', '15360847', '15630759', '11403547', '11593220']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.592598566492906
- 35 USC 102 Novelty (BERT): 0.6461168883225947
- Combined Prediction Score: 0.5979503986758749
- Mean Citation Score: 485.93122800000015
- Max Citation Score: 722.1311
- Similarity Product: 580.6375372891248

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test