Hi,

I would start with tcpdump or ngrep for basic is ip a to ip b communicating.

Because if the sip request is broken or not correct responded or whatever sngrep didn't shows all on the wire in such cases.

Sngrep is great for "its working and I want to see dialogs" imho, not for fundamental network problems.

Cheers

Karsten

Mark Boyce <mark@darkorigins.com> schrieb am Fr., 31. Juli 2020, 09:45:

Hi

I’d start with sngrep so establish if it’s not receiving the BYE (client/network/nat/firewall/etc issue) or not kamailio is not seeing the BYE.

Mark

On 31 Jul 2020, at 03:33, Duy Phan <duy.phan@qupworld.com> wrote:

Hi guy!
I use ec2 ubuntu on aws. But kamailio not receive bye requests.
But when I install Kmailio in vultr is OK.
can you help me?
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