Telephone to telephone data passing system

Details Telephone to telephone data passing system Telephone to telephone data passing system

2007-09-25

2007-09-25

Woo, Stella (Department: 2614)

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

C379S093260, C379S093270

Reexamination Certificate

active

10903915

ABSTRACT:
Various embodiments of the invention provide methods and systems for sending data in-band over a telecommunications network during an active call. Some embodiments provide a telephone user with a way to send alphanumeric data from his or her phone to a receiving party's phone, when the user and the receiving party are engaged in an active telephone call.

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