FAX-telephone interface circuit

Details FAX-telephone interface circuit FAX-telephone interface circuit

1994-12-13

1996-03-12

Hopsass, Jeffery A.

Telephonic communications

Audio message storage, retrieval, or synthesis

379100, 379201, 379373, 379375, H04M 164

Patent

active

054992877

ABSTRACT:
An improved telephone interface box which interfaces an incoming telephone line to either a modem or a telephone handset is disclosed. The choice of connection is made by a controller that answers incoming calls and determines if the call is to be directed to the modem or the telephone line. The controller determines the destination of the incoming call by detecting tones on the telephone line or by examining the response of the caller to a voice prompt. If the controller determines that the incoming call is to be directed to the telephone handset, the controller generates a ring signal having substantially the same cadence as that detected on the incoming line and sends that ring signal to the telephone handset. If the handset goes off-hook during the time the controller is making its determination as to the correct destination for the incoming call, the controller suspends its operation until the handset is placed on-hook or a predetermined time interval elapses. The controller also allows the handset to assert priority over an existing connection by rapidly depressing the off-hook switch on the handset.

REFERENCES:
patent: 4596021 (1986-06-01), Carter et al.
patent: 4782518 (1988-11-01), Mattley et al.
patent: 4800439 (1989-01-01), Yoshino
patent: 4815121 (1989-03-01), Yoshida
patent: 4939772 (1990-07-01), Goto
patent: 4995075 (1991-02-01), Angiolillo-Bent et al.
patent: 5023903 (1991-06-01), Bowen
patent: 5036534 (1991-07-01), Gural
patent: 5056132 (1991-10-01), Coleman et al.
patent: 5073921 (1991-12-01), Nomura et al.
patent: 5077786 (1991-12-01), Hashimoto
patent: 5140630 (1992-08-01), Fry et al.
patent: 5142569 (1992-08-01), Peters et al.

Affiliated with

Also associated with

Rating

FAX-telephone interface circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with FAX-telephone interface circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and FAX-telephone interface circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2106257