Telephonic communications – Supervisory or control line signaling – Substation originated
Reexamination Certificate
2005-08-02
2005-08-02
Isen, Forester W. (Department: 2644)
Telephonic communications
Supervisory or control line signaling
Substation originated
C379S088230
Reexamination Certificate
active
06925168
ABSTRACT:
In a telecommunications network short dialling codes for a subscriber terminal are programmed by another party, and the allocation of codes is communicated to the user. An audio announcement played as part of the dial tone may be used to communication the allocation of codes.
REFERENCES:
patent: 4850007 (1989-07-01), Marino et al.
patent: 5187735 (1993-02-01), Herrero Garcia et al.
patent: 5272748 (1993-12-01), Davis
patent: 5448625 (1995-09-01), Lederman
patent: 5937037 (1999-08-01), Kamel et al.
patent: 6009150 (1999-12-01), Kamel
patent: 4141027 (1993-06-01), None
Beddus Simon Alexander
Launders Darren Michael
British Telecommunications public limited company
Harold Jefferey
Isen Forester W.
Nixon & Vanderhye P.C.
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