[Users] rewrite contact field

[Norman Brandinger]

I took a look at the configuration you attached.  It looks like you are 
executing fix_nated_contact just before the save("location").  This 
might be where your problem is.  Try removing the fix_nated_contact().

There has been considerable discussion on the mailing lists in regard to 
fix_nated_contact().  A result of this discussion was the creation of 
the fix_nated_registere() function.  Please review the mailing lists.  
For example, enter "fix_nated_register site:mail.iptel.org" into a 
google search.

I provided an example of a REGISTER block in a document about Scripting 
using M4.  The example can be located at: 
http://openser.org/docs/scripting.html#id2428967
The key point about the example is that fix_nated_contact() is NOT being 
used during REGISTER processing.

I think that your second question is more along the lines of "how to get 
(Open)SER and Asterisk to work together to provide music-on-hold, 
voicemail, ivr, etc".  I would suggest that you review the mailing lists 
because these topics have been discussed quite a lot.  I think that a 
good starting point may also be to visit the onsip.org web site and 
review their documentation and example configurations.

Regards,
Norm



harry gaillac wrote:
>> 1)  Perhaps if you post your complete .cfg file,
>> someone on the list 
>> will be able to assist you.  There is a very good
>> discussion of NAT 
>> registrations at the onsip.org web site.  Are you
>> 100% positive that 
>> your code snippet is being executed during a
>> REGISTER message ?  You 
>> might want to put some xlog() statements in your
>> configuration file to 
>> make sure that the fix_nated_register() is being
>> executed correctly.
>>     
>
> I post my ser.cfg
>
>   
>> 2) I use a flag called FLAG_NAT_CALLER so that the
>> rest of the 
>> configuration file can test the flag to determine if
>> the CALLER is 
>> behind a NAT and take appropriate actions if that is
>> the case.  In the 
>> code snippet you sent to me, you are using
>> setflag(7).  I have no idea 
>> what this is, but I'll bet that it serves a similar
>> purpose to my 
>> FLAG_NAT_CALLER.
>>     
>
> # -- registrar params --
> modparam("registrar", "nat_flag", 7)
> modparam("registrar", "use_domain", 1)
>
> I don't understand how this flag could help to rewrite
> th sip contact header.
>  
>   
>> 3) Music-on-hold works for us in the situations
>> where it is needed.
>>     
>
> Can you explain me ?
> SER is not a PBX what about IVR ACD VOICEMAIL and more
> that's why I whish using asterisk for telephony
> features and SER as sip router .
>  
> Harry
>  
>  
>   
>> Norman Brandinger wrote:
>>     
>>> Perhaps you are using fix_nat_contact() when you
>>>       
>> should be using 
>>     
>>> fix_nat_register().
>>> Note that fix_nat_register() should ONLY be called
>>>       
>> when a REGISTER 
>>     
>>> method has been received.
>>>
>>> The example below uses a couple of M4 defines, but
>>>       
>> otherwise might 
>>     
>>> work for you.  If you have any questions about the
>>>       
>> statements below, 
>>     
>>> please review the documentation available online
>>>       
>> at openser.org, 
>>     
>>> onsip.org or iptel.org
>>>
>>>
>>>       
> #----------------------------------------------------------------------
>   
>>>  # NAT Detection
>>>
>>>       
> #----------------------------------------------------------------------
>   
>>>  if (!search("^Contact:[ ]*\*") &&
>>>       
>> nat_uac_test("19")) {
>>     
>>>    setflag(FLAG_NAT_CALLER);
>>>    setflag(FLAG_NAT_PING);
>>>    fix_nated_register();
>>>    force_rport();
>>>  };
>>>
>>> Regards,
>>> Norm
>>>
>>> p.s. In regard to your previous problems with
>>>       
>> devices registered to 
>>     
>>> Asterisk, I found that it is a much better idea to
>>>       
>> have all of the SIP 
>>     
>>> devices register with (Open)SER instead of
>>>       
>> Asterisk.  This solution 
>>     
>>> may not be right for you, but it's the way we
>>>       
>> prefer to do things.
>>     
>>>
>>> harry gaillac wrote:
>>>       
>>>> I try to rewrite contact field in sip hf because
>>>>         
>> of
>>     
>>>> fix_nat_contact() fail with this diagram
>>>>
>>>> -----ppp0[ ser/nathelper ] eth0----private
>>>>         
>> network
>>     
>>>>             debian 3.1
>>>>
>>>> when agents send INVITE or REGISTER to ser which
>>>> listen on ppp0 the ip address in contact sip hf
>>>>         
>> stay a
>>     
>>>> private ip address, why ?
>>>>
>>>> I try siproxd which rewrite it .
>>>> how can i build a ser.cfg in order to contact in
>>>>         
>> sip
>>     
>>>> hf will be rewritte
>>>>
>>>> Harry
>>>>
>>>>
>>>>     
>>>>
>>>>     
>>>>        
>>>>
>>>>         
> ___________________________________________________________________________
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>>>>
>>>>
>>>>   
>>>>         
>>> _______________________________________________
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>>>
>>>
>>>       
>>     
>
>
> 	
>
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