SIP (session initiation protocol)-based system and method for achieving VOIP (voice over Internet protocol) network state monitoring

Abstract

The invention relates to SIP (session initiation protocol)-based system and method for achieving VOIP (voice over Internet protocol) network state monitoring. The system comprises an SIP stack module, a call control module, a network state processing module and an application layer module. According to the SIP-based system and method for achieving VOIP network state monitoring employing the structure, a normal message request packet which is sent to a protocol stack under the condition that the protocol stack is not affected can be subjected to SIP message packet assembly through a network state management module to form a message request packet including the network state; an SIP signaling packet with the network state is sent out; the received SIP response message with the network state can be correctly analyzed to extract the network state; the message packet can be reassembled; the packet of which the protocol stack can be normally identified is restored and is transmitted downwards; the network state can be directly positioned by capture package; the network condition is prevented from being searched and positioned by other modes; and the system and the method have relatively wide application ranges.

Description

technical field [0001] The invention relates to the technical field of network monitoring, in particular to the technical field of network monitoring of Internet telephony, and specifically refers to a system and method for realizing VOIP network state monitoring based on the SIP protocol. Background technique [0002] With the rapid development of optical networks and the application of digital transmission technology, problems such as bandwidth and service quality, which were originally regarded as application "bottlenecks" in data communication networks, have been solved one by one, which has promoted the rapid development of IP technology and driven various Applications move closer to IP, and VOIP (Voice over Internet Protocol) telephone / VOIP network telephone (also known as IP PHONE or VoIP) service is one of the typical applications. [0003] SIP (Session Initiation Protocol, the initial session protocol), SIP is a multimedia communication protocol developed by IETF, i...

AI Technical Summary

Problems solved by technology

[0004] At present, many problems encountered in the live network test are due to the influence of the network status. The network status obtained by the SIP-based VOIP system is not directly displayed in the SIP signaling packet, but we send it according to other processes or modules. The network status (connected status of the WAN connection) message is used to obtain and display the final SIP registration effect, and it cannot really feed back the status of the network

As a result, the network status cannot be obtained correctly during the connection test of the live network, and various incomprehensible phenomena occur on the terminal.

For example: in the connection test of the live network, the network can be pinged, but the VOIP registration status shows that the network is unreachable

Since there is no network reason in the docking test of the live network, the corresponding log can only be captured through telnet, and analyzed according to the captured log, which leads to low efficiency in solving problems

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