On Tue, Feb 28, 2023 at 9:48 AM Kingsley Tart <kings...@dns99.co.uk> wrote:

> Hi,
> We've recently hit an issue with Asterisk 18.8.0 where a call comes in
> via SIP (using pjsip) but it can take 5 seconds before starting to
> execute the dialplan.
> This was intermittent, but frequent (eg approx half of the calls).
> We have verbose logging on, but I didn't see any errors.
> Running asterisk -r -vvvv and then watching SIP traffic in another
> window showed the INVITE coming in, then a good 5 seconds before
> dialplan execution started showing within the Asterisk console.
> We've never seen this before, but it affected 6 our of 8 of our
> Asterisk servers. They're running in debian 11 VMS, with the VMs
> running under KVM on the host OS which is also debian 11.
> Any suggestions where to look next? We've been running Asterisk for
> years but never seen this issue before.
> FWIW, the match= lines for the SIP proxies sending to Asterisk are
> configured by IPv4 address, not host name.

Is the local hostname configured in /etc/hosts and not reliant on an
outside DNS server? Are you using ICE or STUN at all?

Joshua C. Colp
Asterisk Project Lead
Sangoma Technologies
Check us out at www.sangoma.com and www.asterisk.org
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