[Serusers] cisco 7905G

[Alberto]

Thanks for your response.

I don't use STUN servers, I use SER with Mediaproxy.

My other sip clients works ok, and they are a stupid sip clients too.
I don't understand it, why the SER respond to private port and not to public 
port?

Thanks.

--
Alberto



----- Original Message ----- 
From: "Marcello Lupo" <lupo at itspecialist.it>
To: "Alberto" <alberto.ipt at telefonica.net>; <serusers at lists.iptel.org>
Sent: Tuesday, September 27, 2005 11:58 AM
Subject: Re: [Serusers] cisco 7905G


> Hi,
> the problem is that Cisco 7905G do not support STUN servers so it is not 
> able to know on which port the request is sent out after NAT. It is a 
> stupid SIP phone, in my opinion, to be used as SIP phone behind nat. 
> Eventually you need a router that make symmetric nat so the 5060 internal 
> port will be translated as 5060 out port but you will need in any case to 
> open ports for RTP and 5060 fr incoming calls.
> Bye,
> Marcello
>
> ----- Original Message ----- 
> From: "Alberto" <alberto.ipt at telefonica.net>
> To: <serusers at lists.iptel.org>
> Sent: Tuesday, September 27, 2005 11:00 AM
> Subject: [Serusers] cisco 7905G
>
>
>> Hi,
>> I have the next scheme:
>>
>>    7905G ------- NAT ------- Internet ------ SER+mediaproxy
>>
>> When the 7905G sends a INVITE the ser responds:
>>   Status: 407 Proxy Authentication Required.
>>
>> This is right, but the destination port this packet not is right because 
>> the ser sends the packet with
>> destination port 5060  (private port) and not the (public port). If I 
>> open this port all it is right, I do not
>> want to open no port.
>>
>> This single problem happens to me with 7905G (no linksys, no X-Ten, ...).
>>
>> I do not understand what it is happening.
>>
>> Thanks for your aid.
>>
>> --
>> Alberto
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>>
>