Recording acquisition method for voice over internet protocol (VoIP) communication system

Abstract

The invention discloses a recording acquisition method for a voice over internet protocol (VoIP) communication system. The method comprises the following steps that: communication equipment serving as a calling initiator or a calling receiving party judges whether to record or not in the process of establishing the calling; the communication equipment allocates a voice digital signal processing unit to agent the voice flows of an internet protocol (IP) terminal; the communication equipment allocates a conference bridge to perform sound mixing on all the voice flows which take part in the calling and appoints one port to be used for generating recording voice flows at the same time; the communication equipment transmits the recording voice flows and calling information to a computer in real time through an Ethernet interface; the computer receives the recording voice flows and the calling information through a network interface and stores the recording voice flows and the calling information in storage equipment; after detecting that the calling ends up, the communication equipment releases the voice digital signal processing unit and the conference bridge; and the communication equipment informs the computer that the recording ends up and interrupts the transmission of the recording voice flows. In the recording acquisition method, the voice digital signal processor and the conference bridge are used in the communication equipment to acquire a recording signal, so that all the callings can be recorded, the tone quality of the recording is clear, the real-time is high, and the processing capacity is high.

Description

technical field [0001] The invention relates to a recording collection method of a VoIP communication system, in particular to using a built-in digital signal processing unit and a conference bridge in a communication device to generate and send a recording voice stream in real time during the recording collection process, and to use a computer for recording A method for real-time receiving and saving of voice streams. Background technique [0002] As the recording system is gradually widely accepted and used in communication systems of various scales, various technologies and inventions for the recording system continue to emerge, but the means for original recording collection have always remained in a relatively primitive method. On the one hand, It cannot meet the growing trend of the recording system scale, and on the one hand, it cannot adapt to the characteristics of the packet voice communication network. Based on the position of the recording collection point in th...

AI Technical Summary

Problems solved by technology

[0006] 1) The recording card based on TDM technology cannot record the packet lines provided by VoIP communication equipment

[0007] 2) The original recording collected on the terminal side cannot reflect the recording status of the whole call

For example, when a call is routed from the network to the first receiving party under the communication system for recording collection, and then during the call, the first receiving party transfers the call to the second receiving party, no matter in the first The first receiver or the second receiver can only record the recording segment of this call, and cannot record the complete call recording during collection.

[0008] 3) Using a dedicated recording device or server to record on the network side requires additional line resources and network resources. Every time recording is required, the call needs to be redirected from the communication device to the device or server, and the call needs to be redirected through the device or server. After processing, the call is resent back to the communication device, resulting in a reduction in system reliability and a waste of resources

[0009] 4) Recording collection by directly grabbing data packets cannot restore the original state of the call, because in the data packets, the transmission channels of the voice media stream and call signaling are separated, and a large amount of follow-up analysis is required to partially deduce the Correspondence between media streams and signaling streams. First, this method completely restores the original information of the call corresponding to the recording; second, the call information and recording stream cannot be obtained in real time.

[0010] Therefore, the prior art cannot meet the needs of recording in the VoIP communication system, and needs to be improved and developed.

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