Communication terminal equipment

Details Communication terminal equipment Communication terminal equipment

1991-08-06

1992-11-24

Dwyer, James L.

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

379100, 379209, 3701101, H04M 1100, H04M 342, H04J 312

Patent

active

051669757

ABSTRACT:
A communication terminal equipment that permits two-way communications to be performed over a complex communications network having an integrated services digital network interconnected with existing multiple communication networks and that has a capability for calling again a receiver terminal of interest when a communication trouble has occurred. The repeated call management table selecting unit selects a repeated call management table that complies with a specific conditions of calling a receiver terminal of interest. If a communication trouble occurs during the calling operation to permit disconnect information to be sent back, the repeated call condition selecting units selects the appropriate condition for making a repeated call from the repeated call management table in response to the returned disconnect information. The selected condition for making a repeated call corresponds to the disconnect information positively, thereby enabling a repeated call to be made in a reliable manner.

REFERENCES:
patent: 5034948 (1991-07-01), Mizutani et al.
patent: 5062108 (1991-10-01), Bales et al.

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