Yep..I am on the same opinion.
I don’t like G.723.1 too because of the quality..and i was interested to see if it’s only my assumption. cRTP is mechanism implemented in Cisco solutions for VoIP..and i consider it as not of a bad approach to the problem.
I am interested in some equipment /vendors/ for testing and emulating the RTP stream..and the IP network./different from Empirix../ Thanks!!