Did anyone try to use the GNU Radio framework for VoIP processing? e.g.
- receiving an RTP stream via Ethernet port as an input
- sending an RTP stream via Ethernet port as the output
- RTCP support
- implementing voice codecs (G.711 A/u…)
- voice activity detection (silence removal and comfort noise
generation) - RFC2833 implementation
- sRTP support
- 3-party conferencing
- voice/music file playout as an RTP stream
- telephony tone generation & DTMF detection
- …