[Asterisk-Users] Hook Flash INFO messages

[Karl Putland]

On Fri, 2003-07-11 at 22:12, Sean P. Robertson wrote:
>  
> Here is a question that needs a few opinions...
>  
> Recently we installed a couple of FXS gateways into a site with a SIP
> Proxy/Softswitch other than Asterisk.  One of the things that the
> users on this site need to do is receive calls on single line phones
> on the FXS gateways and then hookflash and transfer them to other SIP
> users.
>  
> We found that the FXS units, true to their nature as VoIP gateways,
> saw the hookflash and passed a SIP INFO (event hookflash) back to the
> Proxy.  The Proxy sent this message on to the calling SIP phone which
> replied that this "feature is not implemented." 
>  
> The gateway manufacturer says that the Proxy should process the INFO
> packet, place the calling endpoint on hold (as a PBX would), stream
> dialtone to the gateway prompting the user to dial the digits
> indicating the destination to whom the calling party should be
> transferred, and then do a transfer.
>  
> The Proxy manufacturer says that the gateway should see the
> hookflash, Hold the caller locally (as a SIP phone would), and give
> new dialtone to the single line phone prompting the user to dial the
> digits digits indicating the destination to whom the calling party
> should be transferred, and then send a complete transfer sequence to
> the Proxy.
>  
> My question is, how would Asterisk handle a situation like this?  Are
> there any opinions as to how this scenario should be handled?

Asterisk currently only handles dtmf INFO messages.

--Karl

>  
> Sean 
-- 
Karl Putland <karl at putland.linux-site.net>