[Serusers] Authentication problem.

[c waddy]

I can call SER with a phone registered to it, no problem.

When i try to make outbound calls to my provider, they fail with.

407 - proxy authentication required.

I cant seem to trace it down:

 if (method=="REGISTER") {

                        # Uncomment this if you want to use digest
authentication
                        if (!www_authorize("sr.mydomain.com", "subscriber")) {
                                www_challenge("sr.mydomain", "0");
                                break;
                        };
                        save("aliases");
                        save("location");
                        break;

                };

Is this a problem at my end or my providers?

I am new to SER, is there something i am missing?

Thanks.