Telephonic communications – With usage measurement – Call charge metering or monitoring
Patent
1993-12-13
1996-11-12
Chin, Wellington
Telephonic communications
With usage measurement
Call charge metering or monitoring
379111, 379112, 379115, 379130, 379133, 379134, H04M 1500
Patent
active
055747760
ABSTRACT:
A telecommunications network is arranged to provide equal access to a user of a text telephone device, such that a TDD user may dial directly a desired telephone number, without having to first place a call to a so-called relay center and directing the relay center to dial the desired telephone number.
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Leuca Ileana A.
Vitalo Alfred E.
Chin Wellington
Lucent Technologies - Inc.
Luludis Frederick B.
Shankar Vijay
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