US5263084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spontaneous caller identification with call-waiting
Assignee: Nortel Networks Ltd
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Filing: 1991-07-22
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Granted: 1993-11-16
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Expires: 2011-07-22
Abstract
Abstract An enhanced telephony call waiting feature is provided wherein identifying information related to a third party wishing to converse with a first party already engaged in a conversation with a second party is spontaneously provided to the first party. The method comprises the steps of the local office sending a call waiting tone having predetermined characteristics to the first party and its apparatus responding thereto by muting its associated handset for a predetermined interval of time. The local office then transmits the identification data relating to the third party and the first party apparatus receives and displays to the first party the identification information related to the third party thereby allowing the first party to either accept or reject the waiting call in the conventional manner but also based on the displayed information.
Inventors
- 👤 Guy J. Chaput
- 👤 Suzanne D. White
- 👤 Dana A. Merrill
- 👤 William D. Sawyer
- 👤 Lester L. White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:55
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/428; H04M1/00; H04M1/57; H04M3/4288
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
160 words
A method of providing to a first party already engaged in a conversation with a second party via a local switching office, identification information related to a third party wishing to converse with said first party, comprising the steps of: the local office sending a call waiting tone having predetermined characteristics to the first party; the first party apparatus responding to the call waiting tone by muting its associated handset for a predetermined interval of time; the first party apparatus responding to the call waiting tone also by transmitting to the local office an acknowledgement tone indicating that it is capable of receiving calling party identification data; the local office then transmitting data corresponding to the said identification information related to said third party; and the first party apparatus receiving and displaying to the first party said identification information related to said third party thereby allowing the first party to either accept or reject the call from the third party.
Claim 2
Independent Claim
160 words
A method of providing to a first party already engaged in a conversation with a second party via a local switching office, identification information related to a third party wishing to converse with said first party, comprising the steps of: the local office sending a call waiting tone having predetermined characteristics to the first party; the first party apparatus responding to the call waiting tone by muting its associated handset for a predetermined interval of time; the first party apparatus responding to the call waiting tone also by transmitting to the local office an acknowledgement tone indicating that it is capable of receiving calling party identification data; the local office then transmitting data corresponding to the said identification information related to said third party; and the first party apparatus receiving and displaying to the first party said identification information related to said third party thereby allowing the first party to either accept or reject the call from the third party.
Claim 3
Dependent Claim
26 words
A method as defined in claim 1 wherein said acknowledgement tone is transmitted only if extension apparatus associated with the first party apparatus is not off-hook.
Claim 4
Dependent Claim
35 words
A method as defined in claim 2 wherein following the transmission of said data, the local office transmits an alerting tone to indicate to the first party that the transmission of said data is complete.
Claim 5
Dependent Claim
16 words
A method as described in claim 3 wherein the call waiting tone is a dual-tone signal.
Claim 6
Dependent Claim
16 words
A method as defined in claim 4 wherein the acknowledgement tone is also a dual-tone signal.
Claim 7
Dependent Claim
16 words
A method as defined in claim 5 wherein the alerting tone is also a dual-tone signal.
Claim 8
Dependent Claim
87 words
A method as defined in claim 4 and including the further step of, in the instance that the first party has not responded to the first call waiting tone, the local office transmits a second call waiting tone to the first party a predetermined period of time following the termination of the first call waiting sequence but the first party transmits a second acknowledgement tone in response to said second call waiting tone only if said data was not correctly received following the first call waiting tone.
Claim 9
Dependent Claim
154 words
Subscriber telephone apparatus for receiving third party caller identification information while a first party associated with the telephone apparatus is conversing with a second party via a local switching office, comprising: detector circuit means for detecting the presence of a call waiting tone in the presence of voice signals on the subscriber loop; control circuit means responsive to the detection of said call waiting tone for muting the receive and transmit transducers of the telephone apparatus for a predetermined period of time, wherein the control circuit means is further responsive to the detection of the call waiting tone for producing a signal to cause the generation of an acknowledgement signal on the subscriber loop to indicate to the switching office that it is capable of receiving data corresponding to said third party caller identification information; and means for receiving and displaying said third party caller identification information received during said predetermined period of time.
Claim 10
Dependent Claim
154 words
Subscriber telephone apparatus for receiving third party caller identification information while a first party associated with the telephone apparatus is conversing with a second party via a local switching office, comprising: detector circuit means for detecting the presence of a call waiting tone in the presence of voice signals on the subscriber loop; control circuit means responsive to the detection of said call waiting tone for muting the receive and transmit transducers of the telephone apparatus for a predetermined period of time, wherein the control circuit means is further responsive to the detection of the call waiting tone for producing a signal to cause the generation of an acknowledgement signal on the subscriber loop to indicate to the switching office that it is capable of receiving data corresponding to said third party caller identification information; and means for receiving and displaying said third party caller identification information received during said predetermined period of time.
Claim 11
Dependent Claim
46 words
Subscriber telephone apparatus as defined in claim 8 and further comprising a parallel set detector circuit, the control circuit means being responsive to a signal corresponding to an extension set being off-hook from the parallel set detector circuit, for preventing the generation of said acknowledgement signal.
References Cited (Backward Citations)
US3133995A
Cited
US3584156A
Cited
US3812296A
Cited
US3727003A
Cited
US3787626A
Cited
US3963874A
Cited
US3997731A
Cited
USRE31789E
Cited
USRE31789F1
Cited
JPS5839154A
Cited
US4661975A
Cited
US4647723A
Cited
JPS6370648A
Cited
JPH0256358A
Cited
US4879743A
Cited
US4977609A
Cited
US4873719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-11-15 | 1997-05-17 | 1997-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-15 | 2001-05-17 | 2001-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-15 | 2005-05-17 | 2005-11-16 | $7700.00 | Window Closed / Lapsed |