Patent US1919509A successfully refreshed from Google Patents.
EP0398183A2
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Carrier independent network services
Assignee: Nortel Networks Ltd
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Filing: 1990-05-11
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Granted: —
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Expires: 2010-05-11
Abstract
Abstract The present invention provides a method of establishing carrier independent network services (CINS) wherein feature and voice information are decoupled such that feature information is transmitted on a signalling line (13) established on private and/or public facilities, but voice information is transmitted over a public network (12) when calls overflow, thereby permitting the terminating node (11) to identify the incoming call and associate feature information provided by the originating node (10).
Inventors
- 👤 Harry Edward Lewis
- 👤 Gibson Dale Ritenour
- 👤 Cho Lun Wong
- 👤 George Gara
- 👤 Allen Foster Eddisford
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 09:54
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/58; H04Q3/62; H04Q3/0016; H04Q3/002; H04Q2213/00; H04Q2213/13103; H04Q2213/13176; H04Q2213/1322; H04Q2213/13353; H04Q2213/13384; H04Q2213/13396
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
165 words
A method of establishing carrier independent network services (CINS), comprising the steps of: generating an intra-network call between a first station (#1) of an originating node (10) and a second station (#2;#3) of a terminating node (11); sending a CINS request message from said originating node to said terminating node, via a signalling line (13) connected between said originating node and said terminating node; selecting a virtual directory number VDN at said terminating node to be assigned to said intra-network call; sending a first reply message (20;30) containing said selected VDN from said terminating node to said originating node; transmitting said intra-network call with the VDN through a public network (12); receiving said transmitted intra-network call with the VDN at said terminating node; translating the VDN to a real directory number, line equipment number and network feature information; and establishing a "call reference" between the originating and terminating nodes to link the first and second stations for the delivery of assigned network features between them.
Claim 2
Independent Claim
165 words
A method of establishing carrier independent network services (CINS), comprising the steps of: generating an intra-network call between a first station (#1) of an originating node (10) and a second station (#2;#3) of a terminating node (11); sending a CINS request message from said originating node to said terminating node, via a signalling line (13) connected between said originating node and said terminating node; selecting a virtual directory number VDN at said terminating node to be assigned to said intra-network call; sending a first reply message (20;30) containing said selected VDN from said terminating node to said originating node; transmitting said intra-network call with the VDN through a public network (12); receiving said transmitted intra-network call with the VDN at said terminating node; translating the VDN to a real directory number, line equipment number and network feature information; and establishing a "call reference" between the originating and terminating nodes to link the first and second stations for the delivery of assigned network features between them.
Claim 3
Dependent Claim
38 words
A method of establishing carrier independent network serivces (CINS) as defined in claim 1, further comprising the steps of: sending a report message (21) with said first reply message to indicate operating status of said second station (#2).
Claim 4
Dependent Claim
83 words
A method as defined in claim 2, further comprising the steps of: sending a network ring again request (22), if said report message indicates that said second station is off-hook, from said first node to said second node; sending a second reply message (23) from said second no de to said first to confirm network ring again; and sending a third reply message (24) from said second node to said first to notify said first node when said second station is on-hook again.
Claim 5
Dependent Claim
47 words
A method as defined in claim 2, further comprising the steps of: sending a report message (31) with said first reply message (30) indicating redirection of calls from said second station (#2) to a third station (#3), said report message containing directory information of said third station.
Claim 6
Independent Claim
37 words
A method as defined in any of the claims 1 to 4, wherein said CINS request and reply message are routed from said first node (10) to said second node (11) via a third node (Node B).
Claim 7
Independent Claim
40 words
A method of establishing carrier independent network services (CINS) as defined in any of the claims 1 to 5, further comprising the steps of: sending a continuity and security check with said request message in order to validate said call.
Claim 8
Dependent Claim
41 words
A method as defined in claim 6, wherein said continuity and security check comprises the transmission of a predetermined security tone from the originating node to the terminating node such that said request message can be validated at the terminating node.
References Cited (Backward Citations)
No citation records indexed.
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