Apparatus and method for application computer to process forwarding instructions and session initiation protocol requests

• US 9,473,543 B2
• Filed: 12/24/2014
• Issued: 10/18/2016
• Est. Priority Date: 10/21/1997
• Status: Expired due to Fees

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Strathmeyer, Carl R., Finnie, Donald
• Primary Examiner(s): Taha, Shaq
• Application Number:
  US14/583,004
• Publication Number:
  US 20150188953A1
• Time in Patent Office: 664 Days
• US Class Current: 1/1
• CPC Class Codes: H04L 65/1026 at the edge
• CPC Class Codes: H04L 65/103 in the network
• CPC Class Codes: H04L 65/1036 at the edge
• CPC Class Codes: H04L 65/104 in the network
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1096 Supplementary features, e.g. call forwarding or call holding systems providing special services or facilities to telephony subscribers H04M3/42
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04L 65/1106 Call signalling protocols; H.323 and related
• CPC Class Codes: H04L 65/401 wherein the services involve a main real-time session and one or more additional parallel real-time or time sensitive sessions, e.g. white board sharing or spawning of a subconference
• CPC Class Codes: H04M 1/2535 adapted for voice communication over an Internet Protocol [IP] network Voice over Internet Protocol (VoIP) network equipment and services H04M7/006; implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] H04L69/16
• CPC Class Codes: H04M 2242/16 with computer telephone integration
• CPC Class Codes: H04M 7/0012 Details of application programming interfaces [API] for telephone networks; Arrangements which combine a telephonic communication equipment and a computer, i.e. computer telephony integration [CPI] arrangements
• CPC Class Codes: H04M 7/006 Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42
• CPC Class Codes: H04W 4/16 Communication-related supplementary services, e.g. call-transfer or call-hold

Abstract

A method is presented comprising transmitting, from an application computer communicably connected to a call controller which is connected to a data network, packetized messages indicative of telephone calls in progress at an endpoint of the data network, or indicative of such endpoint, and transmitting, from the call controller to the application computer, packetized messages indicative of a variety of information contained in, or relevant to, the telephone calls so as to process such information for a variety of applications. Apparatus to implement the method is also presented.

Claims

1. One or more non-transitory, computer-readable media having instructions that, when executed, cause an application computer to:

process forwarding instructions that specify one or more telephony endpoints to which calls directed to a subscriber are to be directed upon satisfaction of predetermined criteria;

process a session initiation protocol (SIP) request received via a packetized message interface from a packet telephony call controller that is to facilitate communication sessions of a packet-based network, the SIP request to correspond to a call initiated by a caller and directed to the subscriber;

select a telephony endpoint from the one or more telephony endpoints based on the forwarding instructions; and

provide, to the packet telephony call controller, response instructions that identify the telephony endpoint,

wherein the application computer resides in the packet-based network remote from the one or more telephony endpoints.

2. The one or more non-transitory, computer-readable media of claim 1, wherein the forwarding instructions are to indicate that calls arriving between certain times of the day are to be forwarded to the telephony endpoint.

3. The one or more non-transitory, computer-readable media of claim 1, wherein the forwarding instructions are to indicate that calls initiated by the caller are to be forwarded to the telephony endpoint.

4. The one or more non-transitory, computer readable media of claim 1, wherein the caller is to initiate the call through a wireless cellular network.

5. The one or more non-transitory, computer-readable media of claim 1, wherein the caller is to initiate the call through a private branch exchange (PBX).

6. The one or more non-transitory, computer-readable media of claim 1, wherein the caller is to initiate the call through a public switched telephone network (PSTN).

7. The one or more non-transitory, computer-readable media of claim 1, wherein the packet telephony call controller comprises a SIP proxy.

8. The one or more non-transitory, computer-readable media of claim 1, wherein the instructions, when executed, further cause the application computer to provide the response instructions to the packet telephony call controller in a SIP response.

9. The one or more non-transitory, computer-readable media of claim 1, wherein the caller is associated with an originating Internet protocol (IP) address.

10. A method of operating an application computer comprising:

receiving forwarding instructions that specify one or more telephony endpoints to which calls directed to a subscriber are to be directed upon satisfaction of predetermined criteria;

receiving, via a packetized message interface, a session initiation protocol (SIP) request from a packet telephony call controller that is to facilitate communication sessions of a packet-based network, the SIP request to correspond to a call initiated by a caller and directed to the subscriber;

selecting a telephony endpoint from the one or more telephony endpoints based on the forwarding instructions; and

providing, to the packet telephony call controller, response instructions that identify the telephony endpoint,

wherein the application computer resides in the packet-based network remote from the one or more telephony endpoints.

11. The method of claim 10, wherein the forwarding instructions are to indicate that calls arriving between certain times of the day are to be forwarded to the telephony endpoint.

12. The method of claim 10, wherein the forwarding instructions are to indicate that calls initiated by the caller are to be forwarded to the telephony endpoint.

13. The method of claim 10, wherein the caller is to initiate the call through a wireless cellular network.

14. The method of claim 10, wherein the caller is to initiate the call through a private branch exchange (PBX).

15. The method of claim 10, wherein the caller is to initiate the call through a public switched telephone network (PSTN).

16. The method of claim 10, wherein the packet telephony call controller comprises a SIP proxy.

17. The method of claim 10, wherein the instructions, when executed, further cause the application computer to provide the response instructions to the packet telephony call controller in a SIP response.

18. An application computer comprising:

one or more processing devices; and

one or more application programs to be executed by the one or more processing devices to;

process forwarding instructions that specify one or more telephony endpoints to which calls directed to a subscriber are to be directed upon satisfaction of predetermined criteria;

process a session initiation protocol (SIP) request from a packet telephony call controller that is to facilitate communication sessions of a packet-based network, the SIP request to correspond to a call initiated by a caller and directed to the subscriber;

select a telephony endpoint from the one or more telephony endpoints based on the forwarding instructions; and

provide, to the packet telephony call controller, response instructions that identify the telephony endpoint,

wherein the application computer resides in the packet-based network remote from the one or more telephony endpoints.

19. The application computer of claim 18, wherein the forwarding instructions are to indicate that calls arriving between certain times of the day are to be forwarded to the telephony endpoint.

20. The application computer of claim 18, wherein the forwarding instructions are to indicate that calls initiated by the caller are to be forwarded to the telephony endpoint.

21. The application computer of claim 18, wherein the caller is to initiate the call through a wireless cellular network, a private branch exchange (PBX), or a public switched telephone network (PSTN).