Method for collect call service based on voip technology and system thereof

• US 9,832,321 B2
• Filed: 06/02/2013
• Issued: 11/28/2017
• Est. Priority Date: 11/14/2002
• Status: Active Grant

• Current Assignee: Value Innovation Partners Co., Ltd.
• Original Assignee: Ey-Taeg Kwon
• Inventors: Kwon, Ey-Taeg
• Primary Examiner(s): Patel, Hemant
• Application Number:
  US13/907,950
• Publication Number:
  US 20140153446A1
• Time in Patent Office: 1,640 Days
• Field of Search: 370351-357, 379219-241
• CPC Class Codes: H04M 15/00 Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
• CPC Class Codes: H04M 15/08 Metering calls to called party , i.e. B-party charged for the communication
• CPC Class Codes: H04M 15/56 for VoIP communications
• CPC Class Codes: H04M 15/8044 Least cost routing
• CPC Class Codes: H04M 15/8083 involving reduced rates or discounts, e.g. time-of-day reductions or volume discounts
• CPC Class Codes: H04M 15/8257 Unit based
• CPC Class Codes: H04M 15/842 Announcement, e.g. IVR dialogue
• CPC Class Codes: H04M 15/858 Request users acknowledgement prior to use
• CPC Class Codes: H04M 2215/62 Called party billing, e.g. reverse billing, freephone, collect call, 0800 or 0900
• CPC Class Codes: H04M 3/42042 Notifying the called party of information on the calling party details within substation equipment H04M1/57, signalling details H04Q3/72
• CPC Class Codes: H04M 7/1205 where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
• CPC Class Codes: H04M 7/1245 where a network other than PSTN/ISDN interconnects two PSTN/ISDN networks
• CPC Class Codes: H04M 7/125 Details of gateway equipment
• CPC Class Codes: H04M 7/1295 Details of dual tone multiple frequency signalling

Abstract

One embodiment of the present invention provides a collect call method and system thereof, more particularly, in order to charge the called party with a uniform toll for collect call, which is determined by only the type and location of called party terminal. In one embodiment, the collect call method, system and a counsel service providing method use a free VoIP network for part of the voice call link and a charge PSTN network for the rest of the voice call link. In one embodiment, if the first link corresponding to the collect call request is established, the collect call switch calls the called party terminal to establish the second link, and billing on the second link is initiated.

Claims

1. A post-paid collect call system based on voice over Internet protocol (VoIP), comprising:

a calling gateway configured to receive a collect call request, the collect call request generated by a caller telephone, the collect call request including a collect call identifier and a phone number of a called terminal, wherein the calling gateway and caller telephone are included in a VoIP network compatible with one of H.323 Protocol, Session Initiation Protocol (SIP), and Media Gateway Control Protocol (MGCP);

a called gateway configured to receive the collect call request via the VoIP network; and

a collect call switch, wherein the collect call switch is in a Public Switched Telephone Network (PTSN), and the collect call switch is configured to;

a) establish a first communication link only between the collect call switch and the called gateway upon receiving the collect call request from the caller telephone, the first communication link having a first endpoint and a second endpoint, wherein the first endpoint is connected to the collect call switch and the second endpoint is connected to the called gateway;

b) subsequent to establishing the first communication link, establish a second communication link via the PTSN between the collect call switch and the called terminal;

c) transmit a caller identification to the called terminal when the second communication link is established; and

d) connect the first communication link and the second communication link based on a collect call acceptance from the called terminal to establish a voice call link between the caller telephone and the called terminal;

wherein the collect call switch is further configured to determine a collect call toll only for the second communication link and to initiate a billing process responsive to the collect call acceptance.

2. The collect call system of claim 1, wherein the collect call switch is further configured to determine the collect call toll only for the second communication link.

3. The collect call system of claim 2, wherein the collect call switch is further configured to determine the collect call toll as the product of i) a unit collect call rate according to a type of the called terminal and ii) a total collect call time.

4. The collect call system of claim 1, wherein the collect call switch is further configured to initiate the billing process responsive to the collect call acceptance.

5. The collect call system of claim 1, wherein the collect call acceptance is in the form of a dual tone multi-frequency (DTMF) signal from the called terminal.

6. The collect call system of claim 1, wherein the collect call request is received from a collect call proxy server configured to authenticate the caller telephone.

7. The collect call system of claim 1, wherein the caller identification is a recording.

15. The collect call system of claim 1, wherein the caller identification is a recording.

8. A post-paid collect call system based on voice over Internet protocol (VoIP), comprising:

a calling gateway configured to receive a collect call request, the collect call request generated by a caller terminal, the collect call request including a collect call identifier and a phone number of a called terminal, wherein the calling gateway and caller terminal are included in a VoIP network compatible with one of H.323 Protocol, Session Initiation Protocol (SIP), and Media Gateway Control Protocol (MGCP);

a called gateway configured to receive the collect call request via the VoIP network; and

a collect call switch, wherein the collect call switch is in a Public Switched Telephone Network (PSTN), and the collect call switch is configured to;

a) establish a first communication link having a first endpoint and a second endpoint between the collect call switch and the called gateway upon receiving the collect call request from the caller terminal, wherein the first endpoint is connected to the collect call switch and the second endpoint is connected to the called gateway;

b) subsequent to establishing the first communication link, establish a second communication link via the PSTN between the collect call switch and the called terminal;

c) transmit a collect call announcement to the called terminal when the second communication link is established;

d) subsequent to transmitting the collect call announcement and prior to receiving a collect call acceptance from the called terminal, establish a temporary voice call connection between the caller terminal and the called terminal for purposes of caller identification; and

e) subsequent to receiving the collect call acceptance, connect the first communication link and the second communication link to establish a voice call link between the caller terminal and the called terminal for purposes of communication;

wherein the collect call switch is further configured to determine a collect call toll only for the second communication link and to initiate a billing process responsive to the collect call acceptance.

10. The collect call system of claim 8, wherein the collect call switch is further configured to determine the collect call toll only for the second communication link.

11. The collect call system of claim 10, wherein the collect call switch is further configured to determine the collect call toll as the product of i) a unit collect call rate according to a type of the called terminal and ii) a total collect call time.

12. The collect call system of claim 8, wherein the collect call switch is further configured to initiate the billing process responsive to the collect call acceptance.

13. The collect call system of claim 8, wherein the collect call acceptance is in the form of a dual tone multi-frequency (DTMF) signal from the called terminal.

14. The collect call system of claim 8, wherein the collect call request is received from a collect call proxy server configured to authenticate the caller telephone.

9. A post-paid collect call system based on voice over Internet protocol (VoIP), comprising:

a calling gateway configured to receive a collect call request, the collect call request generated by a caller telephone, the collect call request including a collect call identifier and a phone number of a called terminal, wherein the calling gateway and caller telephone are included in a VoIP network compatible with one of H.323 Protocol, Session Initiation Protocol (SIP), and Media Gateway Control Protocol (MGCP);

a called gateway configured to receive the collect call request via the VoIP network; and

a collect call switch, wherein the collect call switch is in a Public Switched Telephone Network (PSTN), and the collect call switch is configured to;

a) establish a first communication link only between the collect call switch and the called gateway upon receiving the collect call request from the caller telephone, the first communication link having a first endpoint and a second endpoint, wherein the first endpoint is connected to the collect call switch and the second endpoint is connected to the called gateway;

b) subsequent to establishing the first communication link, establish a second communication link via the PSTN between the collect call switch and the called terminal;

c) transmit a collect call announcement to the called terminal when the second communication link is established;

d) subsequent to transmitting the collect call announcement and prior to receiving a collect call acceptance from the called terminal, establish a temporary voice call connection between the caller telephone and the called terminal for purposes of caller identification; and

e) subsequent to receiving the collect call acceptance, connect the first communication link and the second communication link to establish a voice call link between the caller telephone and the called terminal for purposes of communication;

wherein the collect call switch is further configured to determine a collect call toll only for the second communication link and to initiate a billing process responsive to the collect call acceptance.

16. The collect call system of claim 9, wherein the collect call switch is further configured to determine the collect call toll only for the second communication link.

17. The collect call system of claim 16, wherein the collect call switch is further configured to determine the collect call toll as the product of i) a unit collect call rate according to a type of the called terminal and ii) a total collect call time.

18. The collect call system of claim 9, wherein the collect call switch is further configured to initiate the billing process responsive to the collect call acceptance.

19. The collect call system of claim 9, wherein the collect call acceptance is in the form of a dual tone multi-frequency (DTMF) signal from the called terminal.

20. The collect call system of claim 9, wherein the collect call request is received from a collect call proxy server configured to authenticate the caller telephone.

21. The collect call system of claim 9, wherein the caller identification is a recording.