[Freeswitch-users] SIP handset connection issues

[David Villasmil]

+1

Also, change your Zoiper to TCP instead of UDP.
We use thousands of Zoipers and they work well.


On Mon, 9 Dec 2019 at 20:03, Ciprian Dosoftei <ciprian.dosoftei at gmail.com>
wrote:

> Sam --
>
> I would debug this by validating the premise that your FreeSWITCH node is
> indeed available through deploying a SIP client on your workstation/laptop
> using the same user credentials as on your phone. If everything checks out
> yet Zoiper still fails, it's likely an issue with its networking. For
> example, perhaps on the days when it works fine the phone might be
> connected on your local wireless network (and it permits SIP traffic) and
> when it doesn't, it may be connected through your data plan which might
> block SIP traffic -- it's a speculation but not an uncommon scenario. If
> that's the case, the easy fix is to change your SIP port to something
> nonstandard, and if possible, enable TLS encryption.
>
> On Mon, 9 Dec 2019 at 14:32, Sam van Herwaarden <
> svanherwaarden at precisionag.org> wrote:
>
>> Hi,
>>
>> I often have issues where my SIP handset can't seem to connect to my
>> FreeSWITCH server. I'm using Zoiper on iOS and the default freeswitch
>> installation (freeswitch-meta-all) on Debian Buster. The configuration is
>> mostly vanilla - I disabled mod_signalwire, enabled mod_flite and
>> mod_erlang_event, changed the default password and set up an extension that
>> uses mod_erlang_event but that's all.
>>
>> On the server ports 5060, 5070 and 5080 are open on TCP+UDP, ports 3478
>> and 3479 are open on UDP, and the port range 16384-32768 is also open on
>> UDP. The server runs on a node on DigitalOcean.
>>
>> The issue I'm encountering is that sometimes my handset registers just
>> fine, but other times I get timeout/unreachable errors. Nothing seems to
>> change about the configuration though - I don't restart the server or
>> anything like that. Also, I do see connection attempts on the server from
>> unknown IPs (I'm assuming these are malicious bots trying to get into the
>> system) - this suggests to me that the server is reachable. The system can
>> be unreachable (to me) for days, but then be reachable for days. I have not
>> been able to recognize a pattern.
>>
>> Does anyone have any suggestions what could be going on? Can it be
>> something with my home networking setup? I would be happy to try a
>> different SIP app if anyone has recommendations, it might be easier to
>> debug this problem if I can get more verbose error messages than what
>> Zoiper provides me with.
>>
>> Kind regards,
>> Sam
>> _________________________________________________________________________
>>
>> 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.
>>
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>>
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>>
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>>
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>
>
>
> --
> Best Regards,
> Ciprian Dosoftei
>
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> _________________________________________________________________________
>
> 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
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
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-- 
Regards,

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