I have 2.0 running. My goal is to have incoming and outbound voice calls and faxing working concurrently. Initially, I had an IAX trunk set up and voice calls successfully completed but faxing did not work. To fix this issue, I modified the iax_general_custom.conf file from calltokenoptional = 188.8.131.52/255.255.255.0 to calltokenoptional = 127.0.0.1/255.255.255.0. This fixed faxing but broke voice calls. So, my thinking was this: use a SIP trunk for voice and I'd be able to make the necessary modifications for IAX without breaking my voice call functionality. I have the SIP trunk set up and working for outbound calling, however; incoming calls do not complete. The carrier is seeing "401 unauthorized" and I am seeing on my end: "chan_sip.c: username mismatch, have <SIP>, digest has <MY_USERNAME>" I have verified that the carrier has the same username that I have listed in my incoming settings for my trunk. Obviously, the carrier is not helping me any further because once they receive the "401", the finger gets pointed to my hardware. I have made the following changes to no avail: 1)allowed anonymous sip callers(temporarily) 2)modified the host setting for incoming setting on trunk to reflect the carrier's IP rather than the domain name. 3)in incoming settings, changed "context=from-trunk" to context=default I'm happy to send along any further logs that might be needed if anyone might be able give this noob a helping hand!!