Hello,
I am a new user and i am trying to use kamailio as remote sip server for clients (softphones particularly)

The error message is "SIP: SIP/2.0 403 Not relaying"

The kamailio listens with one public ip address in a datacenter ( linux debian).
root@vmdeb1:~# kamctl version
/usr/sbin/kamctl 5.2.0

The xlog shows that the register message arrives in kamailio.
I am sure that the user 410 exists.

I have added the remote public address to address via kamctl.
I have added the location via ul add command.

I am not sure about kamailio.cfg because most of it except the tls is the default.

I would appreciate your help.
Alexandros