[Asterisk-Users] Calls to SIP providers

[Bart J. Smit]

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 at 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...