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From: soraberri <421246@posta.unizar.es>
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Subject: [Bluez-devel] Re: possible to use phone itself as headset?
Sender: bluez-devel-admin@lists.sourceforge.net
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Reply-To: bluez-devel@lists.sourceforge.net
Date: Thu, 17 Feb 2005 19:25:06 +0100

Hi Marcel,
Maybe I haven't explain myself... I don't know what you have found at 
the link Lars gave, I only see that there is a implementation of the 
headset profile in BlueZ (so you could speak to the laptop and the 
laptop would make a bluetooth link to the phone, which is connected to 
the GSM network)... but what we need in order to use a phone as a 
headset is not found in this link, at least I can't find it! :c)


Marcel Partap wrote:
>> From: Lars Grunewaldt <lgw@dark-reality.de>
>> Bluetooth-alsa is about supporting the BT headset profile, and the phone
>> won't implement it. Phones support the handsfree profile, you can find a
>> link to two projects on our homepage that might be usefull, i.e.
>> http://www.soft.uni-linz.ac.at/_wiki/tiki-index.php?page=ProjectBluezHandsfree 
>>
> 
> you're right, thx. And the link has this! It needs CVS sdp and stuff, 
> and I have no clue how to use it, but it seems to work.
> 
> 
> From: soraberri <421246@posta.unizar.es>
>  > As far as I know, we would only need to implement headset profile in
>  > the phone side. I think this shouldn't be impossible, after all
>  > SymbianOS has public API for RFCOMM, L2CAP and SDP socket connection,
> Nope, somebody has done it already. Look at the link Lars gave.
>  > and I think it is also possible to create SCO connections in a socket
>  > basis... So, what is the problem then? Even in the assumption that we
>  > managed to develop the headset profile I think NONE actual mobile
>  > phone would let us hook the audio streaming from/to the
>  > microphone/speaker to/into a SCO channel. It is physically posible, of
>  > course because the AudioGateway profile embedded in the phone just do
>  > it, but I'm afraid we have no public interface to get this
>  > functionality (I'm not Symbian developer, let's hope somebody tell
>  > this is not true!).
> IIUC, not true. C link.
> 
>  > Maybe phone manufacturers are too dependent on the Telephony Companies
>  > requirements to allow this nice functionality which would lead us
>  > without doubt to make VoIP calls from the phone if it detects the
>  > presence of the appropiate service running in our home's box.
> Guess what. Think about it. Doom - for them. Goodbye to insane 
> telecommunication costs. KILLER linux feature. Wooooooooow, awesome ;==)
> For that, please someone who can actually code talk to them, merge it 
> into bluez and so. As said, I have absolutely no clue how to just use 
> it, so I won't be even taking the time to compile it. I'll wait till 
> it's covered by the bluez-utils ebuild + deps. :==P
> 
> Oh yeah, stop.. all the euphory - but still the audio stream needs to be 
> grabbed without the /phone/ actually opening a connection. Hope this is 
> hackable.
> so long guys.
> 
> 
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