8-10 second Incoming ring delays VIOP phones

[jeff3820]

Trying out VIOP phones that use Twilio for a carrier. All works fine...good call quality but there is a 8-10 second incoming ring delay. If I remove Pfsense and use an old Asus router, no issue. I have tried the suggestions from the Pfsense manual like putting firewall optimizations to conservative but the incoming ring delays persist.

Suggestions?

[stephenw10]

Do you see any blocked traffic?

Is it only the ring that is delayed? The call audio is OK?

The only thing I can imagine failing like that would be if it's trying one connection type, failing and then falling back to something else.

Steve

[jeff3820]

@stephenw10 Call quality is fine. I’ll have a look at the logs. Thanks!