4. Telephonic communications
  5. Plural exchange network or interconnection
  6. Multi-pbx interconnection

Sujin Catherine Chang

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PBX call management

Telephonic communications – Plural exchange network or interconnection – Multi-pbx interconnection
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Voice over internet protocol (VoIP) network performance monitor

Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
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Profile ID: LFUS-PAI-P-2264464

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