We do a hosted SIP product and have found the zyxel products cause
lots of problems.
Sometimes the product installs fine and a few days later we have
problems like you are experiencing.
We have spent a fair amount of time trying to track the issue down.
The Zyxel is always the common thread.

We have started checking for these routers when pricing a job and if
found we add a Soekris running m0n0wall to the quote.

On 5/8/09, Gate1 <gate1 at libero dot it> wrote:
>
> This is my situation:
>
> - Zyxel p2000w + Zyxel router work fine (standard firewall active, whithout
> I/O firewall rule)
> - TA with STUN + m0n0 work fine (standard firewall active, whithout I/O
> firewall rule)
> - Zyxel p2000w + m0n0 don't work, no call incoming (standard firewall
> active, whithout I/O firewall rule)
> It seems that the packets of routing are lost even if in firewall status
> seem correct.
> I have tried to NAT 1:1, have a SIP bug? Or I've to create a ipf rule?
>
> Thanks,
> Max
>
> -----Messaggio originale-----
> Da: Tim Nelson [mailto:tnelson at rockbochs dot com]
> Inviato: venerdì 8 maggio 2009 0.04
> A: Gate1
> Oggetto: Re: [m0n0wall] SIP phone
>
> How are your firewall rules setup?
>
> FWIW, I had a P2000W and found it to be total garbage. I'm glad you're able
> to actually make calls. :-) The newer Linksys Wifi SIP devices are *VERY*
> nice and have proven to work well.
>
> Tim Nelson
> Systems/Network Support
> Rockbochs Inc.
> (218)727-4332 x105
>
> ----- "Gate1" <gate1 at libero dot it> wrote:
>
>> Has anyone try Zyxel p-2000w Sip phone with m0n0wall (V1.2 or 1.3)?
>>
>> I've try a TA and work fine with configured STUN server, but Zyxel
>> phone with the same configuration will not work for incoming calls.
>> With TA no incoming firewall rule require.
>>
>> Any idea?
>>
>> Best regards,
>> Max.
>>
>>
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