[Freeswitch-users] How to bridge without Answer?

[Anthony Minessale]

Daivd,

I think you missed part of his question.

You can easily choose not to answer an inbound call in FS by never
explicitly answering it.
you can call pre_answer instead or if you send the call to an app that
requires media it's pre_answered automatically.

pre_answer in FS terms is early media.

You can run an ivr for instance completely in early_media (assuming the
telco allows dtmf during early media)

He asked if we can *bridge* the call outward to another endpoint and not
pass the answer across when the far end answers.

The bridge application is designed to bridge calls and the standard behavior
when forwarding a call would be
once the far end answers, pass the answer indication down the line.

We do not currently have provision for supressing the answer as I stated.
It would require a patch.





On Thu, Jan 22, 2009 at 6:44 AM, David Knell <dave at 3c.co.uk> wrote:

>  There's a whole bunch of reasons why you might not want to answer an
> inbound call:
> - intercept messages (e.g. "the cellphone you've called is switched off")
> - cost reduction on 1-800 calls, although you won't get a forward audio
> path from the
> caller until you do answer it
> - in one case, a company for whom I'd provided some IVR (back in the 1990s)
> had
> someone mail out some tens of thousands of cards with "You owe us X - you
> must call
> this (900) number now to avoid court proceedings" on; we were able to not
> answer the
> inbound leg of the call, but still play a recorded message to the caller
> informing them
> that they could just ignore it.  Had we had to answer the inbound leg,
> they'd have been
> charged.
>
> --Dave
>
>  Thanks Anthony,
>
> There are some toll-free numbers I need to configure such that, originator
> does not need to charge to its users, even though they are answered on
> terminator side.
>
>
>
>
> Anthony Minessale-2 wrote:
>
>
>  You can't.
>
> Why would you need that?  Are you trying to forward inbound calls from the
> pstn to an ivr without answering them?
> That could get you in trouble FYI.
>
>
> On Wed, Jan 21, 2009 at 7:40 AM, shehzad p <pmhshz at gmail.com> <pmhshz at gmail.com> wrote:
>
>
>
>  Hi all,
>
> When I dial a number from Originator Gateway, It will route to Freeswitch
> Server and then FS will bridge the call to Terminator Gateway as below.
> Terminator Answer the call (and runs playback, and look for DTMF).
>
> |Originator Gateway|---------------> |FreeSwitch |------------------>
> |Terminator Gateway|
>
> I used bridge application to route call to Terminator.
> But my requirement is that when Terminator answer the call (Respnd with
> 200OK) , Freeswitch should NOT Answer call for A leg (Originater
> Gateway).
>
> How can be this done?
>
> Thanks in advance.
> msp.
> --
> View this message in context:http://www.nabble.com/How-to-bridge-without-Answer--tp21583334p21583334.html
> Sent from the Freeswitch-users mailing list archive at Nabble.com.
>
>
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>
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> --
> David Knell, Director, 3C Limited
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-- 
Anthony Minessale II

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