This may be superseded by the final release of version 5 but in the interim, is it possible to set up a SIP trunk with the current stable version? I'm using voip.co.uk for a 4 channel trunk to carry a bunch of DDI numbers. At the moment I can't call out or in via the trunk (normal registered accounts work fine). I've set up a generic VOIP provider with no registration required and pointed the trunk at the public IP. What else do I need to do? Anyone got this working?