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

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.

What is claimed is: 
     
         1 . (canceled) 
     
     
         2 . A method of providing counsel service based on a VoIP collect call system, the method comprising:
 receiving a basic information, a collect call number, and a counselor identifier from a counsel user terminal in data communication with an affiliate website, wherein the collect call number is for receiving a VoIP collect call from a counselor, wherein counselor identifier the indicates a counselor selected by the counsel user;   sending the basic information and the collect call number to a counselor terminal corresponding to the counselor identifier; and   calculating a total call time by recording a call start time when the counselor terminal makes a collect call at the collect call number and a call end time when the collect call ends,   wherein the basic information is one of the following: text data, image data, sound data and combination thereof.   
     
     
         3 . The method of  claim 2 , wherein the collect call number that is sent to the counselor terminal is not exposed to the counselor and is deleted after the collect call ends. 
     
     
         4 . The method of  claim 2 , further comprising providing an available counseling service list and a counselor list corresponding to the counseling service to the counsel user terminal on accessing to the affiliated website. 
     
     
         5 . The method of  claim 2 , further comprising:
 assorting valid calls and invalid calls based on at least one of the call start time, the call end time and the total call time; and   calculating a sum of the total call time of valid calls for one of the counselor and the affiliated website.   
     
     
         6 . The method of  claim 5 , wherein the assorting comprises comparing the call start time, the call end time and the total call time with call detail record (CDR) produced by a collect call switch. 
     
     
         7 . The method of  claim 2 , further comprising:
 establishing a first communication link between the counselor terminal and a collect call switch; and   establishing a second communication link between the collect call switch and the counsel user terminal,   wherein the billing for the collect call is made only for the second communication link.