US5953407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distinctive ringing and distinctive call-waiting tones in an ISDN
Assignee: Nortel Networks Ltd
•
Filing: 1996-12-05
•
Granted: 1999-09-14
•
Expires: 2016-12-05
Abstract
Abstract In a multi-service wireless, or wired, integrated services digital network, the type-of-call information in a call setup message may indicate the call is a voice call, a fax call or a data call. This information is used to generate a distinctive ring at the called subscriber unit, provided the called subscriber unit is not busy with another call. If the called subscriber unit is busy with a voice call, then a distinctive call waiting tone signal is generated based on the type-of-call information.
Inventors
- 👤 Genzao Zhang
- 👤 Howard Martin Sandler
- 👤 Shahram Dowlatshahi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:12
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/428; H04M19/00; H04M19/02; H04M19/04; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0435; H04Q11/0471; H04M2203/00; H04M2203/20; H04M2203/2066; H04Q2213/00; H04Q2213/07; H04Q2213/098; H04Q2213/176; H04Q2213/18; H04Q2213/298
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
132 words
In an integrated services digital network, a method for identifying non-voice calls comprising: receiving an indication of a called subscriber unit and an indication of type-of-call, said type-of-call indication indicating said call is either a voice call or a non-voice call; constructing an out-of-band call setup message to said called subscriber unit, said call setup message including a voice or non-voice indication for said call based on said type-of-call indication; transmitting said call setup message to said called subscriber unit; at said called subscriber unit, if not busy with another call, generating a distinctive ring signal based on said indication in said call setup message; and at said called subscriber unit, if busy with a voice call, generating a distinctive call-waiting tone signal based on said indication in said call setup message.
Claim 2
Dependent Claim
132 words
In an integrated services digital network, a method for identifying non-voice calls comprising: receiving an indication of a called subscriber unit and an indication of type-of-call, said type-of-call indication indicating said call is either a voice call or a non-voice call; constructing an out-of-band call setup message to said called subscriber unit, said call setup message including a voice or non-voice indication for said call based on said type-of-call indication; transmitting said call setup message to said called subscriber unit; at said called subscriber unit, if not busy with another call, generating a distinctive ring signal based on said indication in said call setup message; and at said called subscriber unit, if busy with a voice call, generating a distinctive call-waiting tone signal based on said indication in said call setup message.
Claim 3
Dependent Claim
99 words
The method of claim 1 wherein said type-of-call indication, when indicating said call is a non-voice call, indicates said call as one of a fax and data call and wherein the step of generating a distinctive call-waiting tone signal based on said indication in said call setup message comprises generating a voice indicating distinctive call-waiting tone signal if said call setup message indicates a voice call, a fax indicating distinctive call-waiting tone signal if said call setup message indicates a fax call, and a data indicating distinctive call-waiting tone signal if said call setup message indicates a data call.
Claim 4
Dependent Claim
181 words
In an integrated services digital network, a method for identifying non-voice calls comprising: receiving an indication of a called subscriber unit and an indication of type-of-call, said type-of-call indication indicating said call is either a voice call or a non-voice call; constructing an out-of-band call setup message to said called subscriber unit, said call setup message including a voice or non-voice indication for said call based on said type-of-call indication; transmitting said call setup message to said called subscriber unit; and at said called subscriber unit, if not busy with another call, generating a distinctive ring signal based on said indication in said call setup message; wherein said type-of-call indication, when indicating said call is a non-voice call, indicates said call is one of a fax and data call and wherein the step of generating a distinctive ring signal based on said indication in said call setup message comprises generating a voice indicating distinctive ring signal if said call setup message indicates a fax call, and a data indicating distinctive ring signal if said call setup message indicates a data call.
Claim 5
Dependent Claim
181 words
In an integrated services digital network, a method for identifying non-voice calls comprising: receiving an indication of a called subscriber unit and an indication of type-of-call, said type-of-call indication indicating said call is either a voice call or a non-voice call; constructing an out-of-band call setup message to said called subscriber unit, said call setup message including a voice or non-voice indication for said call based on said type-of-call indication; transmitting said call setup message to said called subscriber unit; and at said called subscriber unit, if not busy with another call, generating a distinctive ring signal based on said indication in said call setup message; wherein said type-of-call indication, when indicating said call is a non-voice call, indicates said call is one of a fax and data call and wherein the step of generating a distinctive ring signal based on said indication in said call setup message comprises generating a voice indicating distinctive ring signal if said call setup message indicates a fax call, and a data indicating distinctive ring signal if said call setup message indicates a data call.
Claim 6
Dependent Claim
153 words
In an integrated services digital network, a method for identifying non-voice calls comprising: receiving an indication of a called subscriber unit and an indication of type-of-call, said type-of-call indication indicating said call is either a voice call or a non-voice call; constructing an out-of-band call setup message to said called subscriber unit, said call setup message including a voice or non-voice indication for said call based on said type-of-call indication; transmitting said call setup message to said called subscriber unit; at said called subscriber unit, if not busy with another call, generating a distinctive ring signal based on said indication in said call setup message; and at said called subscriber unit, if busy with a voice call, generating a distinctive call-waiting tone signal if said indication in said call setup message indicates a voice call and not generating any tone signal if said indication in said call setup message indicates a non-voice call.
Claim 7
Dependent Claim
153 words
In an integrated services digital network, a method for identifying non-voice calls comprising: receiving an indication of a called subscriber unit and an indication of type-of-call, said type-of-call indication indicating said call is either a voice call or a non-voice call; constructing an out-of-band call setup message to said called subscriber unit, said call setup message including a voice or non-voice indication for said call based on said type-of-call indication; transmitting said call setup message to said called subscriber unit; at said called subscriber unit, if not busy with another call, generating a distinctive ring signal based on said indication in said call setup message; and at said called subscriber unit, if busy with a voice call, generating a distinctive call-waiting tone signal if said indication in said call setup message indicates a voice call and not generating any tone signal if said indication in said call setup message indicates a non-voice call.
Claim 8
Dependent Claim
134 words
In a multi-service wireless integrated services digital network, a method for identifying non-voice calls comprising: receiving an indication of a called subscriber unit and an indication of type-of-call, said type-of-call indication indicating said call is either a voice call or a non-voice call; constructing an out-of-band call setup message to said called subscriber unit, said call setup message including a voice or non-voice indication for said call based on said type-of-call indication; transmitting said call setup message to said called subscriber unit; at said called subscriber unit, if not busy with another call, generating a distinctive ring signal based on said indication in said call setup message; and at said called subscriber unit, if busy with a voice call, generating a distinctive call-waiting tone signal based on said indication in said call setup message.
Claim 9
Dependent Claim
134 words
In a multi-service wireless integrated services digital network, a method for identifying non-voice calls comprising: receiving an indication of a called subscriber unit and an indication of type-of-call, said type-of-call indication indicating said call is either a voice call or a non-voice call; constructing an out-of-band call setup message to said called subscriber unit, said call setup message including a voice or non-voice indication for said call based on said type-of-call indication; transmitting said call setup message to said called subscriber unit; at said called subscriber unit, if not busy with another call, generating a distinctive ring signal based on said indication in said call setup message; and at said called subscriber unit, if busy with a voice call, generating a distinctive call-waiting tone signal based on said indication in said call setup message.
Claim 10
Dependent Claim
99 words
The method of claim 5 wherein said type-of-call indication, when indicating said call is a non-voice call, indicates said call as one of a fax and data call and wherein the step of generating a distinctive call-waiting tone signal based on said indication in said call setup message comprises generating a voice indicating distinctive call-waiting tone signal if said call setup message indicates a voice call, a fax indicating distinctive call-waiting tone signal if said call setup message indicates a fax call, and a data indicating distinctive call-waiting tone signal if said call setup message indicates a data call.
Claim 11
Dependent Claim
199 words
In a multi-service wireless integrated services digital network, a method for identifying non-voice calls comprising: receiving an indication of a called subscriber unit and an indication of type-of-call, said type-of-call indication indicating said call is either a voice call or a non-voice call constructing an out-of-band call setup message to said called subscriber unit, said call setup message including a voice or non-voice indication for said call based on said type-of-call indication; transmitting said call setup message to said called subscriber unit; and at said called subscriber unit, if not busy with another call, generating a distinctive ring signal based on said indication in said call setup message; and wherein said type-of-call indication, when indicating said call is a non-voice call, indicates said call as one of a fax and data call and wherein the step of generating a distinctive ring signal based on said indication in said call setup message comprises generating a voice indicating distinctive ring signal if said call setup message indicates a voice call, a fax indicating distinctive ring signal if said call setup message indicates a fax call, and a data indicating distinctive ring signal if said call setup message indicates a data call.
Claim 12
Dependent Claim
199 words
In a multi-service wireless integrated services digital network, a method for identifying non-voice calls comprising: receiving an indication of a called subscriber unit and an indication of type-of-call, said type-of-call indication indicating said call is either a voice call or a non-voice call constructing an out-of-band call setup message to said called subscriber unit, said call setup message including a voice or non-voice indication for said call based on said type-of-call indication; transmitting said call setup message to said called subscriber unit; and at said called subscriber unit, if not busy with another call, generating a distinctive ring signal based on said indication in said call setup message; and wherein said type-of-call indication, when indicating said call is a non-voice call, indicates said call as one of a fax and data call and wherein the step of generating a distinctive ring signal based on said indication in said call setup message comprises generating a voice indicating distinctive ring signal if said call setup message indicates a voice call, a fax indicating distinctive ring signal if said call setup message indicates a fax call, and a data indicating distinctive ring signal if said call setup message indicates a data call.
Claim 13
Dependent Claim
155 words
In a multi-service wireless integrated services digital network, a method for identifying non-voice calls comprising: receiving an indication of a called subscriber unit and an indication of type-of-call, said type-of-call indication indicating said call is either a voice call or a non-voice call; constructing an out-of-band call setup message to said called subscriber unit, said call setup message including a voice or non-voice indication for said call based on said type-of-call indication; transmitting said call setup message to said called subscriber unit; at said called subscriber unit, if not busy with another call, generating a distinctive ring signal based on said indication in said call setup message; and at said called subscriber unit, if busy with a voice call, generating a distinctive call-waiting tone signal if said indication in said call setup message indicates a voice call and not generating any tone signal if said indication in said call setup message indicates a non-voice call.
Claim 14
Dependent Claim
155 words
In a multi-service wireless integrated services digital network, a method for identifying non-voice calls comprising: receiving an indication of a called subscriber unit and an indication of type-of-call, said type-of-call indication indicating said call is either a voice call or a non-voice call; constructing an out-of-band call setup message to said called subscriber unit, said call setup message including a voice or non-voice indication for said call based on said type-of-call indication; transmitting said call setup message to said called subscriber unit; at said called subscriber unit, if not busy with another call, generating a distinctive ring signal based on said indication in said call setup message; and at said called subscriber unit, if busy with a voice call, generating a distinctive call-waiting tone signal if said indication in said call setup message indicates a voice call and not generating any tone signal if said indication in said call setup message indicates a non-voice call.
Claim 15
Dependent Claim
145 words
A multi-service wireless integrated services digital network for identifying non-voice calls comprising: a base station subsystem for receiving an out-of-band call setup message from a mobile switching centre for a called subscriber unit, said call setup message including a voice or non-voice indication for a call, said base station subsystem for sending said out-of-band call setup message to said called subscriber unit; and said called subscriber unit, if not busy with another call, for generating a distinctive ring signal based on said indication in said call setup message and for passing said distinctive ring signal to associated terminal equipment wherein said called subscriber unit is also for, if busy with a voice call, generating a distinctive call-waiting tone signal based on said indication in said call setup message and passing said distinctive call-waiting tone signal to voice terminal equipment associated with said called subscriber unit.
Claim 16
Dependent Claim
145 words
A multi-service wireless integrated services digital network for identifying non-voice calls comprising: a base station subsystem for receiving an out-of-band call setup message from a mobile switching centre for a called subscriber unit, said call setup message including a voice or non-voice indication for a call, said base station subsystem for sending said out-of-band call setup message to said called subscriber unit; and said called subscriber unit, if not busy with another call, for generating a distinctive ring signal based on said indication in said call setup message and for passing said distinctive ring signal to associated terminal equipment wherein said called subscriber unit is also for, if busy with a voice call, generating a distinctive call-waiting tone signal based on said indication in said call setup message and passing said distinctive call-waiting tone signal to voice terminal equipment associated with said called subscriber unit.
Claim 17
Dependent Claim
33 words
The network of claim 9 including a calling subscriber unit for generating an indication of the called subscriber unit and an indication of a type-of-call based on input received from associated terminal equipment.
Claim 18
Dependent Claim
163 words
A multi-service wireless integrated services digital network for identifying non-voice calls comprising: a base station subsystem for receiving an out-of-band call setup message from a mobile switching centre for a called subscriber unit, said call setup message including a voice or non-voice indication for a call, said base station subsystem for sending said out-of-band call setup message to said called subscriber unit; and said called subscriber unit, if not busy with another call, for generating a distinctive ring signal based on said indication in said call setup message and for passing said distinctive ring signal to associated terminal equipment wherein said called subscriber unit is also for, if busy with a voice call, generating a distinctive call-waiting tone signal based on said indication in said call setup message and passing said distinctive call-waiting tone signal to voice terminal equipment associated with said called subscriber unit and not generating any tone signal if said indication in said call setup message indicates a non-voice call.
Claim 19
Dependent Claim
163 words
A multi-service wireless integrated services digital network for identifying non-voice calls comprising: a base station subsystem for receiving an out-of-band call setup message from a mobile switching centre for a called subscriber unit, said call setup message including a voice or non-voice indication for a call, said base station subsystem for sending said out-of-band call setup message to said called subscriber unit; and said called subscriber unit, if not busy with another call, for generating a distinctive ring signal based on said indication in said call setup message and for passing said distinctive ring signal to associated terminal equipment wherein said called subscriber unit is also for, if busy with a voice call, generating a distinctive call-waiting tone signal based on said indication in said call setup message and passing said distinctive call-waiting tone signal to voice terminal equipment associated with said called subscriber unit and not generating any tone signal if said indication in said call setup message indicates a non-voice call.
Claim 20
Dependent Claim
128 words
In an integrated services digital network, a method for identifying non-voice calls, comprising: receiving an indication of a called subscriber unit and an indication of a type-of-call, said type-of-call indication indicating said call is either a voice call or a non-voice call; constructing an out-of-band call setup message to said called subscriber unit, said call setup message including a voice or non-voice indication for said call based on said type-of-call indication; transmitting said call setup message to said called subscriber unit; at said called subscriber unit, if busy with a voice call, generating a distinctive call-waiting tone signal if said indication in said call setup message indicates a voice call and not generating any tone signal if said indication in said call setup message indicates a non-voice call.
Claim 21
Dependent Claim
128 words
In an integrated services digital network, a method for identifying non-voice calls, comprising: receiving an indication of a called subscriber unit and an indication of a type-of-call, said type-of-call indication indicating said call is either a voice call or a non-voice call; constructing an out-of-band call setup message to said called subscriber unit, said call setup message including a voice or non-voice indication for said call based on said type-of-call indication; transmitting said call setup message to said called subscriber unit; at said called subscriber unit, if busy with a voice call, generating a distinctive call-waiting tone signal if said indication in said call setup message indicates a voice call and not generating any tone signal if said indication in said call setup message indicates a non-voice call.
References Cited (Backward Citations)
EP0282158A2
Cited
US4922484A
Cited
US5001709A
Cited
US5040209A
Cited
US5018191A
Cited
US5317630A
Cited
EP0487234A2
Cited
US5563943A
Cited
EP0494459A2
Cited
US5463623A
Cited
US5513251A
Cited
US5563937A
Cited
US5533108A
Cited
WO1995031076A2
Cited
US5636269A
Cited
GB2293946A
Cited
WO1996035300A1
Cited
US5491744A
Cited
US5519767A
Cited
US5721729A
Cited
US5655016A
Cited
US5812649A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-09-13 | 2003-03-15 | 2003-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-09-13 | 2007-03-15 | 2007-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-09-13 | 2011-03-15 | 2011-09-14 | $7700.00 | Window Closed / Lapsed |