Text mail system using ISDN and ISDN communication terminal devi

Details Text mail system using ISDN and ISDN communication terminal devi Text mail system using ISDN and ISDN communication terminal devi

1991-09-10

1993-11-16

Ng, Jin F.

Telephonic communications

Telephone line or system combined with diverse electrical...

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

379 88, 379 89, H04M 1100, H04M 164

Patent

active

052630820

ABSTRACT:
A text mail system in which a pseudo destination subaddress randomly generated at a call receiver side at the time of receiving an incoming call from an integrated services digital network is used to manage the storing or reading out operation of various sorts of messages in a mail box. The text mail system, which uses the pseudo destination subaddress as a box number based on the property that the pseudo destination subaddress is randomly given for each incoming call, can secure a high mail confidence.

REFERENCES:
patent: 4845739 (1989-07-01), Katz
patent: 4972462 (1990-11-01), Shibata
patent: 4985914 (1991-01-01), Fukunaga
patent: 4994926 (1991-02-01), Gordon et al.
patent: 4996704 (1991-02-01), Brunson

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