Intraoffice alternate connection arrangement

Details Intraoffice alternate connection arrangement Intraoffice alternate connection arrangement

1975-06-06

1977-12-13

Brown, Thomas W.

H04Q 3495

Patent

active

040630439

ABSTRACT:
An intraoffice trunk switching system wherein a connecting path between the called subscriber and the intraoffice trunk is established first; the connecting path between the calling subscriber and the intraoffice trunk to which the called subscriber is connected is then selected so that if no idle channel is available the first connecting path is released and simultaneously therewith the connecting operation between the calling subscriber and the intraoffice trunk is stopped and an idle intraoffice trunk is selected. The connecting path between the called subscriber and the selected intraoffice trunk is established and then the connecting path between the calling subscriber and the selected intraoffice trunk is set to improve the link block ratio of the intraoffice connection.

REFERENCES:
patent: 2945211 (1960-07-01), Gibson et al.
patent: 3041409 (1962-06-01), Zarouni
patent: 3185773 (1965-05-01), Engeman et al.

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