last week i started to call with zoiper here in Thailand. It all worked so good. Now today i want to try again and it says: We are sorry, we were unable to connect to your pbx with the information you provided. Is this a problem any ports of my router blocking? i tried allready 5 hours chaging my routers settings, firewalls, etc nothing works! im going so mad. can somebody please give me some information about this and help me?