Method and apparatus for telephone access Internet-based system for the prepaid card / PIN system

摘要

The caller of using the process of the IP telephone Internet-based operating on a personal computer and the connection of the voice-based to the telephone of the called party, the present invention is to provide a pre-paid telephone calling card service of a method, the step of initiating a call (402), stage of the Internet gateway, to connect to the SCP and calling (403), and SCP, caller, prompting the input of information to the caller steps (404), and, and enter the information in the form of ASCII, step of transmitting to the Internet gateway and (405), stage of the Internet gateway, generates for SCP DTMF tones for the received data caller, ( 406), for the SCP, to verify the account information, the step of querying the SDP and (407), account information if verified, the SCP, and and dial to the called side, the step of connecting the call ( and characterized in that it comprises a 408).