[Serusers] Re: rewrite the FROM part of SIP INVITE

[Ricardo Carvalho]

It isn't necessary to restore those from-header fields to maintain the 
call leg of transactions taking place. As far as I know, by the tests I 
made, Ser routes SIP messages based on Call-Id and not as well From and 
To tags of messages.
Although this is only true if all UAs that you use are RFC3261compliant. 
If some phones that you use implement the old protocol, uses the full 
content of From/To for the same purposes, you may get some problems... 
It's risky manipulate From/To tags...

Regards,
Ricardo.







G.Jacobsen wrote:
> Ricardo,
>
> Ok, but how do you restore the from-header when you send answers of the
> downstream party to the upstream party again ?
>
> Cheers
>
> Gerry
>
>
> ----- Original Message ----- 
> From: "Ricardo Carvalho" <rcarvalho at iric.up.pt>
> To: "Alex Fler" <alexfler at yahoo.com>
> Cc: <serusers at lists.iptel.org>
> Sent: Friday, September 08, 2006 5:15 PM
> Subject: Re: [Serusers] Re: rewrite the FROM part of SIP INVITE
>
>
>   
>> I've used subst() function for substituting From and To URIs and calls
>> succeed well! I think that this indicates that Ser uses in fact only the
>> Call-Id to keep track of calls and not as well From and To tags of
>> messages. Although I this may end up biting me later...
>>
>> You can do that for example with the following syntax:
>>
>>     
> subst('/^From:(.*)sip:.*@your_domain(.*)/From:\1sip:what_ever_number at what_ev
> er_domain\2/');
>   
>> Greetings,
>>
>> Ricardo.
>>
>>
>>
>>
>>
>>
>>
>> Alex Fler wrote:
>>     
>>> Hello guys,
>>>
>>> Sorry for a stupid question, but how do you actually rewrite the FROM
>>> part of SIP INVITE ?
>>>
>>> Do you use avp ? Could someone give me an example  ?
>>>
>>>
>>>
>>> Thanks to all
>>>
>>>
>>>
>>> Alex Fler
>>>
>>>
>>>
>>> ------------------------------------------------------------------------
>>>
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>
>
> 		
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