SIP trunk with just Invite


I have realy hard tryed to setup a trunk to a Swedish PSTN called Tele2.
They don´t like registering of the trunk
Authentication should be:
HTTP MD5 authentication

Is there someone who has a solution to this?

We are glad you have tried hard but you didn’t give us any information on your system or what you have done. Surely the provider told you more than this.