4. Telephonic communications
  5. Plural exchange network or interconnection
  6. Interexchange signalling

J. Mark Dammrose

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Call path reduction via correlation of call legs in a...

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling
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Electronic surveillance via correlation of call legs

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Monitoring
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Profile ID: LFUS-PAI-P-2915928

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