Method and system for a multitenancy telephone network

• US 9,621,733 B2
• Filed: 04/12/2016
• Issued: 04/11/2017
• Est. Priority Date: 03/02/2009
• Status: Active Grant

• Current Assignee: Twilio, Inc.
• Original Assignee: Twilio, Inc.
• Inventors: Lawson, Jeff, Wolthuis, John, Cooke, Evan
• Primary Examiner(s): NGUYEN, QUYNH H
• Application Number:
  US15/097,206
• Publication Number:
  US 20160269564A1
• Time in Patent Office: 364 Days
• Field of Search: 37922001, 37926509
• CPC Class Codes: G06F 9/505 considering the load
• CPC Class Codes: G06F 9/5077 Logical partitioning of resources; Management or configuration of virtualized resources specific details on emulation or internal functioning of virtual machines G06F9/455
• CPC Class Codes: G06F 9/5083 Techniques for rebalancing the load in a distributed system
• CPC Class Codes: H04L 47/125 by balancing the load, e.g. traffic engineering
• CPC Class Codes: H04L 61/2564 for a higher-layer protocol, e.g. for session initiation protocol [SIP]
• CPC Class Codes: H04L 65/1016 IP multimedia subsystem [IMS]
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04L 67/1008 based on parameters of servers, e.g. available memory or workload monitoring of computer activity G06F11/30
• CPC Class Codes: H04M 1/2473 Telephone terminals interfacing a personal computer, e.g. using an API (Application Programming Interface) details of API H04M7/0021
• CPC Class Codes: H04M 15/34 Charging, billing or metering arrangements for private branch exchanges
• CPC Class Codes: H04M 2201/39 using speech synthesis speech synthesis per se G10L13/00
• CPC Class Codes: H04M 2201/40 using speech recognition speech recognition per se G10L15/00
• CPC Class Codes: H04M 3/36 Statistical metering, e.g. recording occasions when traffic exceeds capacity of trunks
• CPC Class Codes: H04M 3/367 Traffic or load control
• CPC Class Codes: H04M 3/42323 PBX's with CTI arrangements
• CPC Class Codes: H04M 3/51 Centralised call answering arrangements requiring operator intervention , e.g. call or contact centers for telemarketing
• CPC Class Codes: H04M 3/5158 in combination with automated outdialling systems devices for signalling identity of wanted subscriber H04M1/26
• CPC Class Codes: H04M 3/523 with call distribution or queueing
• CPC Class Codes: H04M 3/5235 Dependent on call type or called number [DNIS]
• CPC Class Codes: H04M 7/0033 Notification or handling of incoming calls by a computer
• 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: Y02D 10/00 : Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

A method and system for operating a multitenancy telephony system including a call queue that stores call requests received from a plurality of users; an expandable and contractible telephony resource cluster that establishes call sessions for call requests; a analysis system that calculates capacity requirements of the system; a resource allocator that manages the scaling and operation of the telephony resource cluster; and a plurality of telephony network channels that are used as telephony communication channels for call sessions.

Claims

1. A method comprising:

at a multi-tenant communication platform system that includes at least a first call router and a first PSTN network channel;

responsive to a first outbound voice call request of a first platform account included in a first HTTP message provided by a first external server system, the first call router servicing the first outbound voice call request by establishing a first voice call session to a first destination telephony endpoint via the first PSTN network channel;

the first call router generating a first call router application programming Interface (API) resource that includes state of the first voice call session; and

responsive to a first call router API request of the first platform account included in a second HTTP message provided by the first external server system, the platform system providing the first external server system with the state of the first voice call session in a third HTTP message, wherein the first call router API request specifies a URI of the first call router API resource.

2. The method of claim 1, further comprising:

responsive to a second outbound voice call request of a second platform account included in a fourth HTTP message provided by a second external server system, the first call router servicing the second outbound voice call request by establishing a second voice call session to a second destination telephony endpoint via the first PSTN network channel;

the first call router generating a second call router API resource that includes state of the second voice call session; and

responsive to a second call router API request of the second platform account included in a fifth HTTP message provided by the second external server system, the platform system providing the second external server system with the state of the second voice call session in a sixth HTTP message, wherein the second call router API request specifies a URI of the second call router API resource.

3. The method of claim 2,

wherein during servicing of the first outbound voice call request and responsive to the second outbound voice call request, the first call router queues the second outbound voice call request at a first call queue of the platform system,

wherein responsive to the platform system dequeuing the second outbound voice call request, the first call router services the second outbound voice call request.

4. The method of claim 3, wherein the second outbound voice call request is dequeued at an inter-call rate of the second platform account.

5. The method of claim 3, wherein the second outbound voice call request is dequeued responsive to completion of servicing of the first outbound voice call request.

6. The method of claim 2, wherein the first destination telephony endpoint is a phone number and the second destination telephony endpoint is a phone number.

7. The method of claim 2,

wherein the first external server system provides the first HTTP message and the second HTTP message to the platform system,

wherein the first external server system provides a first application,

wherein the second external server system provides the fourth HTTP message and the fifth HTTP message to the platform system,

wherein the second external server system provides a second application,

wherein the first call router is a telephony resource of the platform system, and

wherein the PSTN network channel is a telephone network channel of the platform system.

8. A hardware system comprising:

a multi-tenant communication platform system comprising;

a first call router;

and a first PSTN network channel,

wherein responsive to a first outbound voice call request of a first platform account included in a first HTTP message provided by a first external server system, the first call router is constructed to service the first outbound voice call request by establishing a first voice call session to a first destination telephony endpoint via the first PSTN network channel,

wherein the first call router is constructed to generate a first call router application programming Interface (API) resource that includes state of the first voice call session,

wherein responsive to a first call router API request of the first platform account included in a second HTTP message provided by the first external server system, the platform system is constructed to provide the first external server system with the state of the first voice call session in a third HTTP message, and

wherein the first call router API request specifies a URI of the first call router API resource.

9. The system of claim 8,

wherein responsive to a second outbound voice call request of a second platform account included in a fourth HTTP message provided by a second external server system, the first call router is constructed to service the second outbound voice call request by establishing a second voice call session to a second destination telephony endpoint via the first PSTN network channel,

wherein the first call router is constructed to generate a second call router API resource that includes state of the second voice call session,

wherein responsive to a second call router API request of the second platform account included in a fifth HTTP message provided by the second external server system, the platform system is constructed to provide the second external server system with the state of the second voice call session in a sixth HTTP message, and

wherein the second call router API request specifies a URI of the second call router API resource.

10. The system of claim 9,

further comprising:

a first call queue,

wherein during servicing of the first outbound voice call request and responsive to the second outbound voice call request, the first call router is constructed to queue the second outbound voice call request at the first call queue,

wherein responsive to the platform system dequeuing the second outbound voice call request, the first call router is constructed to service the second outbound voice call request.

11. The system of claim 9, wherein the first destination telephony endpoint is a phone number and the second destination telephony endpoint is a phone number.

12. The system of claim 8,

the hardware system further comprising the first external server system,

wherein the first external server system is constructed to provide the first HTTP message and the second HTTP message to the platform system,

wherein the first external server system provides a first application;

wherein the first call router is a telephony resource of the platform system, and

wherein the PSTN network channel is a telephone network channel of the platform system.

13. The system of claim 10,

the hardware system further comprising the first external server system and the second external server system,

wherein the first external server system is constructed to provide the first HTTP message and the second HTTP message to the platform system,

wherein the second external server system is constructed to provide the fourth HTTP message and the fifth HTTP message to the platform system,

wherein the first external server system is constructed to provide a first application;

wherein the second external server system is constructed to provide a second application;

wherein the first call router is a telephony resource of the platform system, and

wherein the PSTN network channel is a telephone network channel of the platform system.

14. The system of claim 13, wherein the second outbound voice call request is dequeued at an inter-call rate of the second platform account.

15. The system of claim 13, wherein the second outbound voice call request is dequeued responsive to completion of servicing of the first outbound voice call request.

16. A method comprising:

a first application server system providing an HTTP first outbound voice call request to a multi-tenant communication platform system that includes a first call router telephony resource and a first telephone network channel;

the first call router servicing the first outbound voice call request by establishing a first voice call session to a first destination telephony endpoint via the first telephone network channel;

the first call router generating a first call router application programming Interface (API) resource that includes state of the first voice call session;

the first application server system providing an HTTP first call router API request to the platform system, wherein the first call router API request specifies a URI of the first call router API resource;

responsive to the first call router API request, the platform system providing the first application server system with the state of the first voice call session in an HTTP message.

17. The method of claim 16, wherein the first telephone network channel is a PSTN network channel.

18. The method of claim 16, wherein the HTTP first outbound voice call request and the HTTP first call router API request are requests of a first platform account of the platform system.

19. The method of claim 18, further comprising:

a second application server system providing an HTTP second outbound voice call request to the platform system;

the first call router servicing the second outbound voice call request by establishing a second voice call session to a second destination telephony endpoint via the first telephone network channel;

the first call router generating a second call router application programming Interface (API) resource that includes state of the second voice call session;

the second application server system providing an HTTP second call router API request to the platform system, wherein the second call router API request specifies a URI of the second call router API resource;

responsive to the second call router API request, the platform system providing the second application server system with the state of the second voice call session in an HTTP message.

20. The method of claim 19,

wherein during servicing of the first outbound voice call request and responsive to the second outbound voice call request, the first call router queues the second outbound voice call request at a first call queue of the platform system,

wherein responsive to the platform system dequeuing the second outbound voice call request, the first call router services the second outbound voice call request.