4. Telephonic communications
  5. Special services
  6. Service trigger

May Y. Chan

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Apparatus and method for local number portability using nongeogr

Telephonic communications – Special services – Service trigger
Patent

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Method and apparatus for supporting short message services...

Telecommunications – Radiotelephone system – Auxiliary data signaling
Reexamination Certificate

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Method and apparatus supporting short message services in a...

Telecommunications – Radiotelephone system – Auxiliary data signaling
Reexamination Certificate

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Methods and apparatus for local number portability in...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1900307

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