Method and system for transferring a data modem call

Details Method and system for transferring a data modem call Method and system for transferring a data modem call

1997-06-30

1999-02-09

Kuntz, Curtis A.

Telephonic communications

Telephone line or system combined with diverse electrical...

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

379 52, 379 9328, H04M 1100

Patent

active

058704574

ABSTRACT:
Phone calls between data modems may be transferred without dropping the phone calls. An intermediate modem phone call is established between modems that are not currently involved in a modem call to activate a modem that is to receive a modem call transfer. After the modem that is to receive the transfer is activated, the modem call transfer occurs with the assistance of a switching mechanism, such as an automatic call distributor (ACD). The interruption to the modem caused by the transfer is negligible enough so as to not cause the modem call to be dropped. For some types of modems, a three-way conference call may be established between modems and one of the modems may be dropped to realize the modem call transfer.

REFERENCES:
patent: 3624307 (1971-11-01), Sikorsky
patent: 4805209 (1989-02-01), Baker, Jr. et al.
patent: 5008930 (1991-04-01), Gawrys et al.
patent: 5353338 (1994-10-01), Nakano
patent: 5396536 (1995-03-01), Yudkowsky
patent: 5475733 (1995-12-01), Elsdorfer et al.
patent: 5559857 (1996-09-01), Dowens
patent: 5621789 (1997-04-01), McCalmount
patent: 5684870 (1997-11-01), Maloney et al.
patent: 5703943 (1997-12-01), Otto

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