Re: basic 3+ way conference call on plain old phones

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basic 3+ way conference call on plain old phones
\ pedro noticioso (24 May 2007)
. \ Steve Murphy (25 May 2007)

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Subject:	Re: basic 3+ way conference call on plain old phones
Group:	Asterisk-users
From:	Steve Murphy
Date:	25 May 2007

On Thu, 2007-05-24 at 11:37 -0700, pedro noticioso wrote:
> hi guys, is it possible to do a basic 3-or-more-way
> conference call when the phones dont support it? I am
> fully aware of this concept on expensive phones like
> this one:
>
> Grandstream GXP 2000 -Conference call 3-way
> http://www.youtube.com/watch?v=hlZ6JqE1MT4
>
> The problem is that the basic plain old commercial PBX
> supports 3-way calling in ugly old phones like this
> one:
>
> http://www.neo-shop.com/tiendas/0009/varios/telefono%20TEIDE-1.jpg
>
> connected to an ata like this one:
>
> http://www.egk.com.ar/imagenes/hardware/sipura2.jpg
>
> The idea is to be caller (A): dial calle (B), once (B)
> answers press on HOOK or something else to send them
> to MOH, then dial callee (C), talk to him a little
> too, then press the same HOOK or something else and
> the 3, (A)(B) and (C) in a conference call.
>
> Unlike the grandstream, this would definitelly have to
> be done by *, isnt this part of the basic
> functionality like voicemail that is already done and
> a couple lines in the config files it will work on all
> phones done by *?
>
> if not, then, how do you recommend me to it?
>
> the closest I have seen to shat I am looking for is
>
> http://www.voip-info.org/wiki/view/Asterisk+Dynamic+conferences+macro
>
> is there a better alternative?
>
> any thoughts?
>
> thanks a lot!
>
>

Seems like you are talking about "attended transfer" here?

It would work on zaptel interfaces.

A and B are talking. A flashes hook, gets dialtone, B would hopefully
get dialtone.

A then dials C. C answers, and A and C talk. B is still on hold.

A flashes hook again. Now A, B, and C can talk together.

Any member of the party (A, B, or C) can hang up, and leave the other
two conversing.

Is that what you are thinking of?

murf

--
Steve Murphy <murf>
Digium

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