Thanks for the replies - this is very interesting. I still have an earlier question as above however. Does the SIP message AND the UDP packets both route through VoXaLot or is it just SIP? I assume they both do otherwise there wouldn't be latency issues when using VoXaLot. Some of these threads however seem to suggest that UDP can bypass VoXaLot somehow. Are there any settings other than STUN that need to be set to make this happen? How does the SIP invite message know how to redirect the call?

Matt