[Freeswitch-users] Occasional Dropped call at 30 seconds

[David Villasmil]

+1

On Fri, 10 May 2019 at 16:08, Vallimamod Abdullah <vma at vallimamod.org>
wrote:

> Hi,
>
> a 30s delay (more exactly, 32s) is for sure a nat issue: you are not
> receiving the final ACK.
>
> Check if there is a SIP ALG enabled on your SonicWall and try to disable
> it.
>
> Best Regards,
> --
> Vallimamod Abdullah
> SIP Solutions
> vma at sip.solutions
> linkedin.com/in/vallimamod
> .
>
>
> On 10 May 2019, at 16:10, Sean Devoy <sdevoy at bizfocused.com> wrote:
>
> Hi all,
>
> I have a problem with one client where the call is fine and they can talk
> for almost exactly 30 seconds, then the log says originating phone (of FS)
> hung up.  This only happens like 1% to 5% of the time.
>
> The phones are Mitel 6867i and 6865i which must use TCP not UDP.  The
> firewall is a $#!#&* SonicWall.  I am 99% convinced it is the firewall.  It
> happened once on a Cisco phone using UDP so I increased the firewall UDP
> timeout.  I already have keep-alive set to 30 seconds.  It has not recurred
> on UDP phones since.
>
> Any ideas on something to do to Mitel config or SonicWall that might
> prevent a drop after 30 seconds?
>
> I have considered PCAP, but with so few occurrences I am worried about
> PCAP size before I get a “hit.”
>
> Thanks,
> Sean
>
>
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-- 
Regards,

David Villasmil
email: david.villasmil.work at gmail.com
phone: +34669448337
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