[asterisk-users] RES: SIP Response 181 - Is it possible in Asteri sk?

[Marco Cordeiro]

Hi Philipp,

So, what you are saying is that SIP trunks between 2 Asteriks might be able
to handle SIP Response 181 ?

Marco


-----Mensagem original-----
De: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] Em nome de Philipp Kempgen
Enviada em: terça-feira, 2 de junho de 2009 13:06
Para: Asterisk Users Mailing List - Non-Commercial Discussion
Assunto: Re: [asterisk-users] SIP Response 181 - Is it possible in Asterisk?

Philipp Kempgen schrieb:
> Marco Cordeiro schrieb:

>> I have a situation that I have to notify the calling party that the call
is
>> being forwarded to another number. So far, in the tests that I made,
calling
>> from a SIP extension to another SIP extension with the forwarding
activated,
>> I get only the SIP Response 302 (MOVED_TEMPORARILY) instead of the SIP
>> Response 181 CALL_IS_BEING_FORWARDED).
>> 
>> The forwarding of the SIP extensions is being set with AstDB. 
>> 
>> My doubt is if, only a SIP Proxy would be able to trigger SIP Response
181,
>> or if it would be possible with an Asterisk Server. 
> 
> IIRC Asterisk trunk can send and handle 181 Call is being forwarded.

However as a rule of thumb you could probably say that SIP B2BUAs
send "302 Moved temporarily" whereas SIP proxies send "181 Call is
being forwarded".


    Philipp Kempgen
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