I don't know if any of you would be able to help with this, but I figured I would ask. After a few hours of inactivity, it seems my Bria softphones lose connection with FreeSWITCH. They are able to call out, but when calling in I just get silence until it goes to voicemail. It sounds like a classic NAT issue, except the NAT is completely handled by a Soincwall that has VoIP features to support SIP transformations (SonicOS Enhanced 5.x). It seems as though after a period of time the port in which the Sonicwall is assigning for the SIP UA and the port that FreeSWITCH has registered get out of sync, despite the Bria re-registering every 5 minutes. Could this be caused by 'Use rport' being enabled by default in the Bria softphone? Setup - FreeSWITCH 1.0.4 Bria 2.5.4 Sonicwall E5500 with SIP transformations and Consistent NAT enabled Thanks in advance for any help, -Adam