Facsimile and static presentation processing – Facsimile – Facsimile relay system
Reexamination Certificate
2003-12-22
2009-11-24
Safaipour, Houshang (Department: 2625)
Facsimile and static presentation processing
Facsimile
Facsimile relay system
C358S442000, C358S434000, C379S100170, C379S093310, C370S352000, C370S389000
Reexamination Certificate
active
07623273
ABSTRACT:
A method and system for connecting V.34 enabled fax machines (that is fax machines capable of operating at 33,600 bps) over network gateways that use the un-enhanced T.38 protocol, that is, gateways that have not been upgraded to handle the V.34 33,600 bps protocol in fax relay mode. When a gateway detects a V.8 protocol signal, the signal is modified so that the fax machines fall back to non V.34 protocol and operate at a slower speed which the un-enhanced T.38 gateway is capable of handling.
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Garakani Mehryar Khalili
Umansky Ilya
White Steven J.
Wildfeuer Herbert Michael
Cisco Technology Inc.
Marger & Johnson & McCollom, P.C.
Safaipour Houshang
Worku Negussie
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