I know the FOSS FreeSWITCH VoIP b2bua has a TON of "hacks" to "Be liberal in what you accept" which is a mess of things to support, to clean up after the commer

I know the FOSS FreeSWITCH VoIP b2bua has a TON of "hacks" to "Be liberal in what you accept" which is a mess of things to support, to clean up after the commercial entities that don't follow SIP specs. e.g. SONUS information: https://freeswitch.org/confluence/display/FREESWITCH/RTP+Issues https://freeswitch.org/confluence/display/FREESWITCH/RTP+Iss...