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

[Kapil Dhawan]

OpenSER allows this.

>From: Ricardo Carvalho <rcarvalho at iric.up.pt>
>To: "G.Jacobsen" <g_jacobsen at yahoo.co.uk>
>CC: serusers at lists.iptel.org
>Subject: Re: [Serusers] Re: rewrite the FROM part of SIP INVITE
>Date: Fri, 08 Sep 2006 17:21:16 +0100
>
>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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>
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