Method and system for recording IP (internet protocol) calls based on SIP (session initiation protocol) protocol

Abstract

The invention relates to a method and a system for recording IP (internet protocol) calls based on the SIP (session initiation protocol) protocol. The method for recording IP calls based on the SIP protocol comprises the steps that a service server establishes conversations respectively with an IP phone, a media server and a recording server according to an SIP conversation request after receiving the SIP conversation request of the IP phone; the media server receives an RTP (real time protocol) speech stream transmitted by the IP phone and processes the RTP speech stream based on SIP conversations among the service server, the IP phone and the media server; the recording server receives the RTP speech stream processed by the media server and saves the RTP speech stream as a recording file based on the SIP conversations among the service server, the media server and the recording server. The method and the system can realize concentrated memory and management of IP call recording files, and the convenience of configuration and management of the IP call recording system can be improved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and system for recording IP telephones based on the SIP protocol. Background technique [0002] SIP (Session Initiation Protocol, Session Initiation Protocol) is an application layer signaling control protocol for creating, modifying and releasing sessions of one or more participants. These sessions can be Internet multimedia conferencing, IP telephony or multimedia distribution. Participants in a session can communicate via multicast, mesh unicast, or a mixture of the two. [0003] At present, there are two main solutions for realizing IP recording: [0004] One is the direct recording of the IP phone, usually by pressing the "record" button on the IP phone during a call, and the sound heard can be recorded on the IP phone. This solution requires special terminal support, and the standard IP phones made by many manufacturers do not support the recording functio...

AI Technical Summary

Problems solved by technology

This solution needs to set the port mirroring function on network devices such as Ethernet switches, and mirror the traffic of all IP phones in the same call to the port connected to the centralized recording server, but not all switches on the network can set ports Mirroring, users are distributed in multiple offices in a complex network, it is difficult to achieve packet capture and recording, and all IP phone ports are mirrored, which requires high performance and bandwidth of network equipment. At the same time, system configuration, management and maintenance are cumbersome and difficult Meet practical application needs

Images