solved already. it was an issue with an leading zero.
Hi
I got from my SIP provider Cablecom an account which does not need registration. Authentification is made thru my IP.
If I use a standard SIP account from another provider my freepbx works fine.
If I switch to Cablecom without registration I receive calls but get an error message from freepbx that it have to check the number. Cablecom tells me, that they did not get a call request.
It would be a great help if somebody could send me what I have to put into the Trunk or the outgoing route.
Thank you!