Hi All, Which configuration settings will allow my Asterisk registered softphones to make calls to third party SIP provider subscribers (fwd, voiptalk, etc.) by directly entering the sip uri (e.g. sip:user@provider.com)? I have googled for configurations, but they all assume that Asterisk is registered with a provider and the provider routes the calls with dial prefixes. I want to bypass any provider and go straight to the external phone sip address. In my current configuration I get an immediate 'Number does not exist Call rejected: 404 Not Found' when I try to call an external sip phone. Judging by the speed of the error, I assume that asterisk looks for internal users only. Do I need to add a line in extension.conf that tells asterisk where to route SIP calls? I have seen lines like these: exten => _sip.1, If so, what action should I put on such a line? Bart...