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USPatentGranted
E1

System and method for originating a call via a circuit-switched network from a user equipment device

Granted 17 Aug 2021 · 6 office actions

Assignee: BlackBerry Ltd

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Attorney: Attorney · Log in to unlock

Inventors: Adrian Buckley, Jan Hendrik Lucas Bakker · Examiner: Mark Sager · AU 3992 · TC 3900

Application
15/467,640
filed 23 Mar 2017
Publication
Not published
not published
Patent· this page
US RE48696
granted 17 Aug 2021
16
Claims
2 independent
220
File wrapper
transactions
2037
20-year term
term adjustment not held
none
Litigation
checked
6
Classifications
H04W76/11, H04W76/12
379
Citations
379 cites · 0 cited by

Life of the patent

16 dated events
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Abstract

In one aspect, an application server (AS) node comprises a processor configured to receive a first SIP Invite request from the UE device, the first SIP Invite request having call information which includes a URI of a called party and data indicating that the first SIP Invite request is for a bearer over a circuit-switched (CS) network. An E.164 number is associated with the call information in the first SIP Invite request and a SIP response including the E.164 number is sent to the UE device in response to receiving the first SIP Invite request. When a call setup message including the E.164 number received from the CS network, the received E.164 number is verified if it is valid and if so, the call information is identified based on the E.164 number and is sent to the called party via a second SIP Invite request.

Claims

16 · 2 independent · depth 3
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16 granted claims

Classifications

6 codes
IPC · International Patent Classification
Section H — Electricity
  • H04W76/11
  • H04W76/12
  • H04L12/66
  • H04L29/06
  • H04W8/26
  • H04M7/00

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File wrapper

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Pendency
4.4 y
1,608 days filing → grant
Office actions
3
non-final + final
Responses
3
3 RCE
Examiner
Mark Sager
art unit 3992 · TC 3900
Law firm
Law firm · Log in to unlock
Citations: 379 back · 0 forward

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Citations

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