wildpackets omnipeek 的带voip分析功能的版本功能强大，可以将g.729,g.711等音频码流直接存成wav文件，分析效率极大提高。
G.729
方法一：
1 ：wireshark： Capture the traffic using Etherealand dumping the RTP data (Statistics -> RTP -> Show all streams ->SaveAs)。
2：Use rtpdump (http://www.cs.columbia.edu/IRT/software/rtptools/)to dump only the audio payload (“rtpdump -F payload -f in.rtp -o out.rtp”)
3：Use VoiceAge decoder. In windows CMD, (va_g729_decoder.exe out.rtp out.pcm).
4: Play out.pcm useing cool edit pro 2.0 or GoldWave 16bit signed/unsigned 8000Hz.
方法二：1 ：wireshark： Capture the traffic using Etherealand dumping the RTP data (Statistics -> RTP -> Show all streams ->analyze->--Save Payload( select .raw and forward))。
2：Use VoiceAge decoder. In windows CMD, (va_g729_decoder.exe out.raw out.pcm).
3: Play out.pcm useing cool edit pro 2.0 or GoldWave 16bit signed/unsigned 8000Hz. |
|
转播
