Systems and methods for scalable hunt-group management

• US 7,738,650 B2
• Filed: 10/22/2007
• Issued: 06/15/2010
• Est. Priority Date: 05/01/2007
• Status: Expired due to Fees

• Current Assignee: Union Technologies Corporation
• Original Assignee: Union Technologies Corporation
• Inventors: Balk, Igor, Choupak, David Michael
• Primary Examiner(s): Hong; Harry S
• Application Number:
  US11/876,473
• Publication Number:
  US 20080273686A1
• Time in Patent Office: 967 Days
• Field of Search: 370/270, 370/390, 370/395.2, 379/111, 37921101-21401, 379219-22101, 379/221.03, 379231-234, 379/265.01, 379/265.02, 379/265.09, 455/417, 455/445, 709/227, 709/228
• US Class Current: 379/265.01
• CPC Class Codes: H04M 2203/405 Competitive bidding for work items
• CPC Class Codes: H04M 3/42365 Presence services providing information on the willingness to communicate or the ability to communicate in terms of media capability or network connectivity
• CPC Class Codes: H04M 3/465 Arrangements for simultaneously calling a number of substations until an answer is obtained
• CPC Class Codes: H04M 3/5232 Call distribution algorithms
• CPC Class Codes: H04Q 2213/13056 Routines, finite state machines
• CPC Class Codes: H04Q 2213/13072 Sequence circuits for call signaling, ACD systems
• CPC Class Codes: H04Q 2213/13141 Hunting for free outlet, circuit or channel
• CPC Class Codes: H04Q 2213/1322 PBX
• CPC Class Codes: H04Q 2213/1326 Consultation call, broker's call, call hold, toggling
• CPC Class Codes: H04Q 3/64 Distributing or queueing

Abstract

The present invention provides systems, methods, and apparatus for semi-stateless scalable and distributed management of telephone hunt group features in a PBX. In particular, the invention conducts an auction-like phone call handling process in which phone handling decisions are partially delegated from a central resource to the individual client agents. Briefly, phone handling functions offer available call to agents who then decide which available calls to handle. This auction-like process is preferably implemented using broadcast (or multicast) messaging features so that system components do not need to know or access global state information. Messaging is preferably built on a selected instant messaging protocol.

Claims

1. A hunt group management system comprising:

a plurality of server computers, said server computers being distributed and operating asynchronously; and

a plurality of agent computers, said server computers in communication with and exchanging messages with said agent computers,

wherein an incoming call to a particular server computer is routed to a selected agent at a particular agent computer, said selected agent being selected via broadcasting a plurality of messages between said server and agent computers, and

whereby the incoming call is transferred to said selected agent upon selection of the agent and acknowledgement by the agent.

4. The system of claim 1, wherein the plurality of messages broadcast between the at least one of the plurality of server computers and the at least one of the plurality of agent computers, comprise a readiness-inquiry message broadcast from at least one of the plurality of server computers to the plurality of agent computers.

5. The system of claim 1, wherein the plurality of messages broadcast between the at least one of the plurality of server computers and the at least one of the plurality of agent computers, comprise a readiness-response message broadcast from at least one of the plurality of agent computers to the plurality of server computers.

6. The system of claim 1, wherein the at least one of the plurality of server computers selects at least one of the plurality of agent computers by unicasting a call-post message to the at least one of the plurality of agent computer.

7. The system of claim 1, wherein the selected at least one of the plurality of agent computers provides acknowledgment by broadcasting an acknowledgment message.

8. The system of claim 1, wherein upon completion of a transferred call, the selected at least one of the plurality of agent computers broadcasts a readiness-notification message.

9. The system of claim 1, wherein the plurality of server computers and plurality of agent computers broadcast a plurality of messages according to an instant messaging protocol.

2. A method of hunt group management comprising:

broadcasting, by a server computer, a first readiness-inquiry message to a plurality of agent computers in communication therewith in connection with handling an incoming call, said server computer being one of a plurality of server computers in communication with and exchanging messages with said plurality of agent computers;

unicasting, by said server computer, a call-post message to a selected agent at a particular agent computer;

receiving, by said server computer, a broadcast acknowledgment message from the selected agent at the particular agent computer; and

transferring, by said server computer, said incoming call to said selected agent.

10. The method of claim 2 further comprising, prior to the step of unicasting a call-post message, receiving a broadcast readiness-response message from one of the plurality of agent computers.

11. The method of claim 10 further comprising broadcasting a second readiness-inquiry message to the plurality of agent computers if no readiness-response message is received from the plurality of agent computers within a predetermined time interval after broadcasting the first readiness-inquiry message.

12. The method of claim 10 further comprising broadcasting a second readiness-inquiry message to the plurality of agent computers if no broadcast acknowledgment message is received from the selected agent at the particular agent computer within a predetermined time interval after unicasting the call-post message.

13. The method of claim 2 further comprising, prior to the step of broadcasting a first readiness-inquiry message, waiting for one or more calls to become available for transfer to an agent.

14. The method of claim 2 further comprising, prior to the step of broadcasting a first readiness-inquiry message, waiting for an indication that a new call is ready to be transferred or an indication that an agent has become ready to handle a new call.

3. A method of hunt group management comprising:

receiving, by an agent computer, a readiness-inquiry message broadcast by a particular server computer to a plurality of agent computers in connection with handling an incoming call, said server computer being one of a plurality of server computers in communication with and exchanging messages with said plurality of agent computers;

broadcasting, by an agent at said agent computer, an acknowledgement message to said plurality of server computers that said agent is handling said incoming call; and

receiving, by the agent at said agent computer, said incoming call from said particular server computer.

15. The method of claim 3 further comprising broadcasting, by the agent at said agent computer, a readiness-response message after the step of receiving a readiness-inquiry message.

16. The method of claim 15 further comprising receiving, by the agent at said agent computer, a unicast post-call message from said particular server computer after the step of broadcasting a readiness-response message.