MC, this is true. IP Phones are expensive in Brazil and Argentina at least. If I recall correctly, the cheapest one I could find in Argentina goes for 66USD + taxes (21%) from Audiocodes (the smallest model). Nonethless it is pretty hard to find a phone/ATA these days that don't support transfers....

The only valid use case I can think of is the one I described where you want an external application to control transfers (CTI application for example). But then again, att_xfer contributes very little to that if you want to have full control of it.

Open source is this exactly, we can't make everyone happy and I can see that att_xfer is used by a very few ppl so I advocate to remove the application entirely. Specially because where it is implemented it is very hard to maintain and depends on the understanding of several parts of the core. Yet another task that sits on the lap of the core devs... Anyhow, just my 2 cents...

Joćo Mesquita
FreeSWITCH™ Solutions

On Thu, Jun 27, 2013 at 1:00 PM, Michael Collins <msc@freeswitch.org> wrote:

On Wed, Jun 26, 2013 at 9:36 PM, Anthony Minessale <anthony.minessale@gmail.com> wrote:

Can't the sip phone do this natively?

That was actually my first question several months ago when this first came up. The answer give to me was that there are locations where buying a SIP phone is severely cost prohibitive which means having the server do all the work is a more viable option even though the feature hasn't actually been built yet.

Joao, let us know how this goes for you.

-MC

--
Michael S Collins
Twitter: @mercutioviz
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_________________________________________________________________________
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FreeSWITCH-powered IP PBX: The CudaTel Communication Server
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