8/02/2024
They (Eolo) are now helping me configuring freePBX/asterix! The technician is really nice and now I can receive INVITE on my server but no incoming call. Problems whit auth. Also fail2ban was blocking the sip server ip after some attempts. Now it’s in whitelist. Tomorrow the technician will call back and I really hope to solve the issue!
What did you change? That will be important for future readers of this thread. sngrep captures traffic ahead of fail2ban, so fail2ban alone couldn’t explain it.
Two reasons why Asterisk would challenge the INVITE (it shouldn’t): The trunk should have Authentication Outbound (not Both). I didn’t mention it because Outbound is the default. Otherwise, it’s not recognizing the call as belonging to the trunk. Set Match (Permit) to the IP address from which the INVITE was received.
Once you get past this, you could still have a problem with the Inbound Route, but the log should show what is happening.
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