Method of sharing and transferring information between ISDN tele

Details Method of sharing and transferring information between ISDN tele Method of sharing and transferring information between ISDN tele

1997-10-14

1999-11-30

Tsang, Fan S.

Telephonic communications

Audio message storage, retrieval, or synthesis

Indication or notification of message

379 74, 379 8811, 379 9301, 379 9305, 379 9306, 379211, 379212, 379372, 379376, 370216, 370217, 370218, 370221, 370264, 370524, H04M 164, H04M 1100, H04M 342, H04M 100, H04J 116

Patent

active

059955953

ABSTRACT:
A method of automatically sharing and transferring information between a Work at Work (WAW) ISDN telephone and a Work at Home (WAH) ISDN telephone. This information includes, calling line identifier delivery from the WAW telephone to the WAH telephone, facilitating subsequent transferring of the call to the WAH telephone if desired. Message waiting status is also shared, facilitating the coordination of message waiting lamps at both the WAW and WAH telephone. Information from one telephone to the other is carried transparently through the ISDN network as user-to-user information, calling party subaddress, D channel X.25 packet message, lower layer compatibility or a combination of these elements. The telephones automatically establish ISDN calls between themselves and swap information pertaining to the status of the companion telephones.

REFERENCES:
patent: 5023868 (1991-06-01), Davidson et al.
patent: 5422942 (1995-06-01), Kakwashima
patent: 5436962 (1995-07-01), Hirata
patent: 5509061 (1996-04-01), Amereller et al.
patent: 5521964 (1996-05-01), Schull et al.
patent: 5623538 (1997-04-01), Petty
patent: 5790638 (1998-08-01), Bertacchi

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