[Freeswitch-users] Occasional Dropped call at 30 seconds

[Alexander Neilson]

This link is for a different phone system. 

But it looks like you may need to get two setting options to avoid the random translations of port. 

https://www.3cx.com/docs/sonicwall-firewall-configuration/

Regards
Alexander

Alexander Neilson
Neilson Productions Limited
021 329 681
alexander at neilson.net.nz

> On 11/05/2019, at 03:47, David Villasmil <david.villasmil.work at gmail.com> wrote:
> 
> +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
> _________________________________________________________________________
> 
> The FreeSWITCH project is sponsored by SignalWire https://signalwire.com
> Enhance your FreeSWITCH install with disruptive priced SMS and PSTN services.
> Build your next product on our scalable cloud platform.
> 
> Join our online community to chat in real time https://signalwire.community
> 
> Professional FreeSWITCH Services
> sales at freeswitch.com
> https://freeswitch.com
> 
> Official FreeSWITCH Sites
> https://freeswitch.com/oss
> https://freeswitch.org/confluence
> https://cluecon.com
> 
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
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