I'm trying to write a simple DPI (Deep Packet Inspection) tool. In my current phase, I need to develop a H.323 protocol detector. To aim this goal I need a H.225 / H.245 packet generator. I seems that almost all tool use SIP and RTP & RTCP protocol. Does anybody have any idea which tool use H323 protocols in VOIP?
How to generate H323 (Including H225 & H245) protocol packets?
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There is number of h323 libraries, some of them are openh323 and openoh323/openooh323.
But ALL libraries have issues and alot of bugs. Main issue - protocol is VERY complex if compare with sip or other modern protocols and ALL vendors do "vendor-specific" addons/changes in protocol way they think "better for client".
As result it is hard to work with any tools. Easy way detect is just get signatures like 'h323', 'rtp' etc.