Method for processing telephony sessions of a network

• US 10,230,772 B2
• Filed: 12/14/2017
• Issued: 03/12/2019
• Est. Priority Date: 02/04/2011
• Status: Active Grant

• Current Assignee: Twilio, Inc.
• Original Assignee: Twilio, Inc.
• Inventors: Lawson, Jeffrey, Wolthuis, John, Cooke, Evan
• Primary Examiner(s): Yao, Kwang B
• Assistant Examiner(s): Loo, Juvena W
• Application Number:
  US15/841,781
• Publication Number:
  US 20180109569A1
• Time in Patent Office: 453 Days
• Field of Search: None
• CPC Class Codes: H04L 61/106 across networks, e.g. mapping telephone numbers to data network addresses
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/4053 without floor control

Abstract

A method for processing telephony sessions of a network including at least one application server and a call router, the method including the steps of assigning a primary Uniform Resource Identifier (URI) and at least a secondary URI to an application; mapping a telephony session to the primary URI; communicating with the application server designated by the primary URI using an application layer protocol; receiving telephony instructions from the application server and processing the telephony instructions with the call router; detecting an application event; and upon detecting the application event, communicating with the application server designated by the secondary URI.

Claims

1. A method comprising:

assigning, by a platform system, a primary application resource identifier and a secondary application resource identifier to a first application, wherein the primary resource application identifier identifies a first application server system that facilitates communication sessions, and the secondary application resource identifier identifies a second application server system that facilitates communication sessions, the first application server system being different than the second application server system;

responsive to receiving a request to initiate a first communication session of the first application;

embedding at least a portion of state information of the first communication session in a first application layer protocol request, and

sending the first application layer protocol request via an application layer protocol to the first application server system that is identified by the primary application resource identifier; and

responsive to detecting an application event of the first communication session;

embedding updated state information of the first communication session in a second application layer protocol request, and

sending the second application layer protocol request via the application layer protocol to the second application server system that is identified by the secondary application resource identifier.

2. The method of claim 1, further comprising:

receiving a first application server response from the first application server system.

3. The method of claim 2, further comprising:

processing the first application server response.

4. The method of claim 1, wherein the application event of the first session is an application error.

5. The method of claim 1, wherein the application event of the first session is a status change event.

6. The method of claim 4, wherein the second application layer protocol request further includes data describing the application error.

7. The method of claim 1, further comprising:

after sending the second application layer protocol request, resuming the first communication session via the second application server system.

8. A platform system comprising:

one or more computer processors; and

one or more computer readable mediums storing instructions that, when executed by the one or more computer processors, cause the platform system to perform operations comprising;

assigning a primary application resource identifier and a secondary application resource identifier to a first application, wherein the primary resource application identifier identifies a first application server system that facilitates communication sessions, and the secondary application resource identifier identifies a second application server system that facilitates communication sessions, the first application server system being different than the second application server system;

responsive to receiving a request to initiate a first communication session of the first application;

embedding at least a portion of state information of the first communication session in a first application layer protocol request, and

sending the first application layer protocol request via an application layer protocol to the first application server system that is identified by the primary application resource identifier; and

responsive to detecting an application event of the first communication session;

embedding updated state information of the first communication session in a second application layer protocol request, and

sending the second application layer protocol request via the application layer protocol to the second application server system that is identified by the secondary application resource identifier.

9. The platform system of claim 8, the operations further comprising:

receiving a first application server response from the first application server system.

10. The platform system of claim 9, the operations further comprising:

processing the first application server response.

11. The platform system of claim 8, wherein the application event of the first session is an application error.

12. The platform system of claims 8, wherein the application event of the first session is a status change event.

13. The platform system of claim 11, wherein the second application layer protocol request further includes data describing the application error.

14. The platform system of claim 8, the operations further comprising:

after sending the second application layer protocol request, resuming the first communication session via the second application server system.

15. A non-transitory computer readable medium storing instructions that, when executed by one or more computer processors of a platform system, cause the platform system to perform operations comprising:

assigning a primary application resource identifier and a secondary application resource identifier to a first application, wherein the primary resource application identifier identifies a first application server system that facilitates communication sessions, and the secondary application resource identifier identifies a second application server system that facilitates communication sessions, the first application server system being different than the second application server system;

responsive to receiving a request to initiate a first communication session of the first application;

embedding at least a portion of state information of the first communication session in a first application layer protocol request, and

sending the first application layer protocol request via an application layer protocol to the first application server system that is identified by the primary application resource identifier; and

responsive to detecting an application event of the first communication session;

embedding updated state information of the first communication session in a second application layer protocol request, and

sending the second application layer protocol request via the application layer protocol to the second application server system that is identified by the secondary application resource identifier.

16. The non-transitory computer readable medium of claim 15, the operations further comprising:

receiving a first application server response from the first application server system; and

processing the first application server response.

17. The non-transitory computer readable medium of claim 15, wherein the application event of the first session is an application error.

18. The non-transitory computer readable medium of claims 15, wherein the application event of the first session is a status change event.

19. The non-transitory computer readable medium of claim 17, wherein the second application layer protocol request further includes data describing the application error.

20. The non-transitory computer readable medium of claim 15, the operations further comprising:

after sending the second application layer protocol request, resuming the first communication session via the second application server system.