[Kamailio-Users] simple question

[Daniel-Constantin Mierla]

Hello,

On 10/06/08 20:22, Alex Balashov wrote:
> There's a lot more to being a B2BUA than just changing some headers. 
> What you are suggesting is a phenomenal waste of time and energy.  If 
> you want a lightweight B2BUA for a specific purpose, check out Yate or 
> similar.
>
> Also, there's a lot more attributes that define a logical call leg. 
> These include the GUID, the tags, etc.  Your approach is superficial.
>   
indeed, a b2bua is something very complex, even the definition is not 
clear. Also, it is not recommended to change the URI in From/To headers 
because of backward compatibility with sip 1.0.

However, if it is about a controlled environment where all endpoints are 
sip 2.0 compliant, then a dialog is matched only by call-id, from tag 
and to tag. In such situation changing the From/To URI is harmless - I 
have done it many times for limited purposes (anonymous, To URI number 
format) and simply works.

Cheers,
Daniel


> Alex R.S.M wrote:
>
>   
>> Hi,
>>
>> I want openSER to act ad a B2B UA,  replacing TO, FROM and URI fields. I 
>> know "rewritehostport" function allow me to modify URI. What are 
>> functions can be used to change TO and FROM fields.
>>
>> Thanks,
>>
>>
>>
>>
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-- 
Daniel-Constantin Mierla
http://www.asipto.com