Method and system for achieving VOIP (Voice over Internet Phone) agency

• Main Authors: WANG TAOLIN, MAO ZEJIE, CHENG JIAN, XIAO ZHONG
• Format: Patent
• Language: Chinese; English
• Published: 19.12.2012
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION; TELEPHONIC COMMUNICATION

The invention provides a method for achieving a VOIP (Voice over Internet Phone) agency. The method is characterized by comprising the steps as follows: S1: starting S2: determining whether a client incoming call request is received through a server, if so, carrying out SIP (Session Initiation Protocol) treatment through the server, and sending SIP response, transferring to S5, otherwise, transferring to S3; S3: determining whether to enable the server to call out, if so, inputting a client number, and sending the SIP request to the number, and carrying out S4, otherwise, transferring to S2; S4: determining whether the number is responded, if so, transferring to S5, otherwise, determining that the call is failed, and transferring to S2; S5: establishing a communication linkage between the server and the client, and carrying out voice data treatment and playing; and S6: finishing the communication. According to the method, the SIP protocol is adopted to establish the communication linkage; the SDP (Service Dis