4. Telephonic communications
  5. Special services
  6. Call waiting

Deborah Lewandowski Barclay

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Call waiting calling party defined content

Telephonic communications – Special services – Call waiting
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Method and apparatus for providing network support for a...

Telecommunications – Radiotelephone system – Emergency or alarm communication
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Method and apparatus for surveillance of voice over internet...

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Monitoring
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Method for notifying a primary wireless unit of group...

Telecommunications – Radiotelephone system – Usage measurement
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Network support for caller ID verification

Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
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Profile ID: LFUS-PAI-P-2929838

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