ll(spandsp, "Log messages generated by SpanDSP directly")
ll(transcoding, "Media and RTP transcoding")
ll(codec, "Codec negotiation")
ll(rtcp, "RTCP handling")
ll(ice, "ICE negotiation")
ll(crypto, "Negotiation of SRTP, crypto suites, DTLS, SDES")
ll(srtp, "SRTP encryption and decryption")
ll(http, "HTTP, HTTPS, Websockets")
ll(control, "Control protocols including SDP exchanges, CLI")
ll(dtx, "DTX timer/buffer")