Telephonic communications – Plural exchange network or interconnection – Interexchange signalling
Patent
1997-12-18
2000-04-18
Zele, Krista
Telephonic communications
Plural exchange network or interconnection
Interexchange signalling
379350, 379399, 370410, H04M 700
Patent
active
060524596
ABSTRACT:
The invention concerns a method and an arrangement for selecting a signalling system. The inventive method comprises the steps of storing an information about various parameters of alternative signalling systems of different markets into a storage device of an arrangement, selecting one of the stored alternative signalling systems by programmable control device, transmitting a logical value corresponding the selected signalling system to field effect type switching device provided in the arrangement, and controlling the field effect type switching device by the electrical control signal such that the selected signalling system is provided. The control arrangement comprises a device for performing the method described above.
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patent: 5307403 (1994-04-01), Reichelt
patent: 5483110 (1996-01-01), Koide et al.
patent: 5566173 (1996-10-01), Steinbrecher
patent: 5579311 (1996-11-01), Chopping et al.
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Derwent Acc No. 89-235136/198933, English language Abstract for EP0327686 (Undated).
Telefonaktieoblaget LM Ericsson
Tieu Benny Q.
Zele Krista
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