US4068101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the automatic communication of two telephone subscribers
Assignee: Individual
•
Filing: 1976-04-07
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Granted: 1978-01-10
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Expires: 1996-04-07
Abstract
Abstract Automatic communication establishment between two telephone subscribers of different exchanges. The identities of the caller and the called are transferred to the called exchange in the event that the called line is busy, permitting disconnection of the two exchanges. The called's line is thereafter monitored until becoming free upon which the caller's identity is utilized by the called's exchange for calling back the caller. If the caller's line is now busy, the transfer of the called and the caller's identities take place again, this time back to the caller's exchange. The caller's line is similarly monitored until free, after which the method is repeated until communication is established. A separate embodiment includes the step of testing whether the called party does not reply. Identities are transferred to the called's exchange for awaiting an indication that the called party has returned. The return of the called party initiates the call-back method for establishing communication.
Inventors
- 👤 Auguste Marie Chemarin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:38
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/48
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
150 words
A method for the automatic communication of two telephone subscribers whose respective telephones are connected to different exchanges, wherein a caller subscriber calls a called subscriber, including the steps of: first testing whether the called is engaged; transferring the identities of the caller and the called from the caller's exchange to the called's exchange responsive to said first testing indicating the called is engaged, said transferring permiting the disconnection of the two exchanges; second testing by the called's exchange for indicating line freedom of the called's line; calling back the caller by the called's exchange responsive to said second testing indicating that the called's line is free; and repeating said first testing step responsive to the step of calling back the caller by the called's exchange, said repeating occurring with the "called" changing status to that of the "caller," and the "caller" changing status to that of the "called. "
Claim 2
Independent Claim
150 words
A method for the automatic communication of two telephone subscribers whose respective telephones are connected to different exchanges, wherein a caller subscriber calls a called subscriber, including the steps of: first testing whether the called is engaged; transferring the identities of the caller and the called from the caller's exchange to the called's exchange responsive to said first testing indicating the called is engaged, said transferring permiting the disconnection of the two exchanges; second testing by the called's exchange for indicating line freedom of the called's line; calling back the caller by the called's exchange responsive to said second testing indicating that the called's line is free; and repeating said first testing step responsive to the step of calling back the caller by the called's exchange, said repeating occurring with the "called" changing status to that of the "caller," and the "caller" changing status to that of the "called. "
Claim 3
Dependent Claim
90 words
A method according to claim 1 and further including the additional steps of: third testing whether the called replies; transferring the identities of the caller and the called from the caller's exchange responsive to said third testing indicating the called does not reply, said transferring permitting the disconnection of the two exchanges; fourth testing by the called exchange for the return of the called by monitoring the called's line, responsive to said third testing; and initiating said second testing step responsive to said fourth testing indicating return of the called.
Claim 4
Dependent Claim
46 words
A method according to claim 1 and further including the step of: queueing of the identities of the caller and the called according to the order of transfer to a subscriber; and wherein said step of calling back the caller calls back according to said order.
Claim 5
Dependent Claim
44 words
A method according to claim 1 and further including: storing said identities of the caller and the called at the caller's exchange; recognizing said caller's utimely calling back the called; and stopping the effects of said untimely calling responsive to said step of recognizing.
Claim 6
Dependent Claim
34 words
A method according to claim 1 and further including: timing of a predetermined time period; and annulling said identities and said step of second testing responsive to the timing completion of said time period.
Claim 7
Dependent Claim
38 words
A method according to claim 1 and further including: counting of said first testing occurring from original caller's exchange; and annulling said identities and said step of transferring responsive to the counting of a predetermined number of counts.
Claim 8
Dependent Claim
144 words
Apparatus for the automatic communication of two telephone subscribers whose respective telephones are connected to different exchanges, wherein a caller subscriber calls a called subscriber, including the steps of: first means for testing whether the called is engaged; means for transferring the identities of the caller and the called from the caller's exchange to the called's exchange responsive to said first means indicating the called is engaged, permitting the disconnection of the two exchanges; second means for testing by the called's exchange for line freedom of the called's line; means for calling back the caller by the called's exchange responsive to said second testing means indicating that the called's line is free; and means for initiating said first means responsive to said calling back means wherein said "called" subscriber changes status to that of the "caller" and said "caller" changes status to the "called."
Claim 9
Dependent Claim
144 words
Apparatus for the automatic communication of two telephone subscribers whose respective telephones are connected to different exchanges, wherein a caller subscriber calls a called subscriber, including the steps of: first means for testing whether the called is engaged; means for transferring the identities of the caller and the called from the caller's exchange to the called's exchange responsive to said first means indicating the called is engaged, permitting the disconnection of the two exchanges; second means for testing by the called's exchange for line freedom of the called's line; means for calling back the caller by the called's exchange responsive to said second testing means indicating that the called's line is free; and means for initiating said first means responsive to said calling back means wherein said "called" subscriber changes status to that of the "caller" and said "caller" changes status to the "called."
References Cited (Backward Citations)
US2534500A
Cited
US2885482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-09 | 1981-07-11 | 1982-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-09 | 1985-07-11 | 1986-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-09 | 1989-07-11 | 1990-01-10 | $7700.00 | Window Closed / Lapsed |