Static structures (e.g. – buildings) – Framing to receive door – doorjamb – or window sash – Architrave; i.e. – finish strip on floor – ceiling – or wall...
Patent
1997-04-24
1999-05-18
Smith, Creighton
Static structures (e.g., buildings)
Framing to receive door, doorjamb, or window sash
Architrave; i.e., finish strip on floor, ceiling, or wall...
379201, 379210, H04M3/42
Patent
active
059040130
ABSTRACT:
A method for wide area overlapped ringing is disclosed wherein a primary destination is rung, and, if a no answer condition is encountered after an initial ringing threshold, a secondary destination is rung such that the ringing of the primary and secondary destinations at least partly overlap. Some embodiments involve the ringing of more than one secondary destination, where each secondary destination is rung for a set time and then halted. Other embodiments provide bridging capability for three-way calling. The disclosed method has wide area capability; thus, the secondary destination may comprise any destination accessible by the Publicly-Switched Telephone Network.
REFERENCES:
patent: 5452349 (1995-09-01), Uehara et al.
patent: 5719925 (1998-02-01), Peoples
patent: 5729599 (1998-03-01), Plomondon et al.
patent: 5815562 (1998-10-01), Iglehart et al.
5ESS-2000 Switch, National ISDN Feature Handbook, No. 235-390-515, Issue 2.00 (Sep. 1995).
Greenspan Steven Lloyd
Hisiger Robert S.
Janow Richard H.
Taylor Barbara Anne
AT&T Corp.
Smith Creighton
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