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

Sam K. Sin

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Multiple voicemail account support for a VoIP system

Multiplex communications – Special services
Reexamination Certificate

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System and method for supporting conferencing capabilities...

Multiplex communications – Special services – Conferencing
Reexamination Certificate

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User interface with key timeout

Telephonic communications – Terminal – Housing or housing component
Reexamination Certificate

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VoIP call routing

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2370165

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