[Asterisk-Users] Asterisk with USB

Wed Feb 8 08:52:24 MST 2006

Actually, there is such a thing as a usb headset for a cellphone.  My
Razr V3 only has a mini-usb connection, used for data, charging, and
apparently voice if you want a wired headset.  It may be possible to
rig up a driver for THIS phone, but I doubt anyone will bother, since
this phone has bluetooth also.

Then again, after more testing I think that there's some interference
caused if a second phone is powered on and you're using the bluetooth
connection to interface to asterisk.  Made some calls yesterday while
on the road, but were full of static (just like when I place test
calls from home).  Got home, and noticed a second cellphone had been
left on.  Seems that the cellphone works fine with the bluetooth
dongle, as long as there is not a second phone turned on (the second
phone is also a razr, but bluetooth was off).  Two cellphones calling
each other directly have no static.  A direct usb connection to
asterisk might be beneficial in THIS case, but as there aren't many
phones that have a usb connection for a headset, I doubt it'd be
practical (and still may not be possible, I'm not sure how the usb
headset works, maybe it sends the signal digitally using a usb
standard, or just uses some of the pins in the usb jack in a
non-standard way).

Joseph Tanner

On 2/8/06, Cosmin Prund <cosmin at adicomsoft.ro> wrote:
> Bluetooth enabled phones to talk to Bluetooth headsets; I guess there's a
> protocol for the phone to talk to any Bluetooth headset, no matter who made
> it. This protocol would have to include something to allow voice to pass
> from the phone to the headset and vice versa. It might also include
> something for dialing out.
>
> I suppose chan_bluetooth is emulating a headset, so there's support in the
> phone for passing voice around. There's also documentation for how to do it.
>
> I've never seen a USB headset so I doubt there's any support in the phone
> for passing voice over that connection. Maybe this is why there's no such
> thing as "chan_usb"
>
> Then again, I'm no expert on this matter, so maybe I'm plain wrong.
>
> > -----Original Message-----
> > From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> > bounces at lists.digium.com] On Behalf Of Facundo Ameal
> > Sent: Wednesday, February 08, 2006 3:59 PM
> > To: Asterisk Users Mailing List - Non-Commercial Discussion
> > Subject: Re: [Asterisk-Users] Asterisk with USB
> >
> > If you can do it with a bluetooth conectionm, why not with the USB? Do
> > you know which is the differece? Does it detect the cellphone as
> > another device?
> > I don't have a phone with bluetooth  capability so I cannot test it to
> > see how te OS recognizes it.
> >
> > 2006/2/8, Joseph Tanner <joseph at thetechguide.com>:
> > > I believe it's just being recognized as a modem.  Feel free to try it
> > > out, but I haven't seen anything describing how to accomplish what you
> > > want with just a data cable (and I have searched).  Please prove me
> > > wrong, I'd love to ditch the bluetooth dongle (already have too many
> > > 2.4GHz devices as it is, I think they're starting to cause
> > > interference).
> > >
> > > This is just going on gut instinct here, but if you're really
> > > persistent, maybe you can use the data cable to send the dial
> > > commands, and have some kind of adapter cable going from the 2.5" plug
> > > you have, to a 3.5", put that into the line-in of a sound card, and
> > > then configure asterisk to send the dial commands (to dial numbers,
> > > hangup, anything that needs a key pressed on the phone) through usb
> > > (should be able to access the tty device and issue commands there),
> > > and use the soundcard for audio.  If I'm not mistaken, that's
> > > basically what the dock-n-talk and cellsocket devices do.  You may run
> > > into a few problems, but I "think" it'd work.
> > >
> > > Joseph Tanner
> > >
> > > On 2/8/06, Facundo Ameal <fameal at gmail.com> wrote:
> > > > But my cell phone is recognised as a ttyACM device...
> > > > Is it the same?
> > > >
> > > > 2006/2/7, Joseph Tanner <joseph at thetechguide.com>:
> > > > > Far as I know, you cannot use a usb cable to connect a cellphone
> > > > > directly to asterisk.  You need something called a cellsocket or a
> > > > > dock-n-talk.  You use these to connect directly to a regular
> > > > > telephone, so to connect to asterisk you'll need an FXO port.
> > > > >
> > > > > I'd love to find something that would directly connect a cellphone
> > to
> > > > > asterisk that didn't cost a fortune.  A usb cable to the cellphone
> > > > > would be perfect, just a plain gsm-sip gateway would be nice too but
> > > > > are $$$$$.
> > > > >
> > > > > Joseph Tanner
> > > > >
> > > > > On 2/7/06, Joe Tahan <dtg19 at hotmail.com> wrote:
> > > > > >
> > > > > >
> > > > > > I've read something on connecting a cellphone to asterisk with
> > bluetooth,
> > > > > > I'm not really sure about connecting to a usb phone.
> > > > > >
> > > > > > I think Joseph Tanner can help us out, as he did it with
> > bluetooth.
> > > > > >
> > > > > >
> > > > > > Truely/
> > > > > >
> > > > > > Joe
> > > > > >  ________________________________
> > > > > >  From: Facundo Ameal <fameal at gmail.com>
> > > > > > Reply-To: Asterisk Users Mailing List - Non-Commercial
> > > > > > Discussion<asterisk-users at lists.digium.com>
> > > > > > To: Asterisk Users Mailing List - Non-Commercial
> > > > > > Discussion<asterisk-users at lists.digium.com>
> > > > > > Subject: [Asterisk-Users] Asterisk with USB
> > > > > > Date: Tue, 7 Feb 2006 11:55:07 -0300
> > > > > >
> > > > > > >Hello everybody! I've seen that you can connect your cellphone
> > via
> > > > > > >bluetooth, but I've a Motorola V300 and it doesn't have that
> > feature,
> > > > > > >so I wish to connect it via USB cable, is it pissible con use my
> > > > > > >cellphone with asterisk like that? I 've not been able to find
> > > > > > >information on how to do this, I'l appreciate any help.
> > > > > > >
> > > > > > >Thanks in advance!
> > > > > > >
> > > > > > >--
> > > > > > >Facundo Ameal.
> > > > > > >fameal<at>gmail<dot>com
> > > > > > >Linux User #395088
> > > > > > >
> > > > > > >FWD: 741664
> > > > > > >MSN: asado<at>lamorcilla<dot>com<dot>ar
> > > > > > >ICQ: 74005793
> > > > > > >
> > > > > > >
> > > > > > >Open your mind, use open source.
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> > > > --
> > > > Facundo Ameal.
> > > > fameal<at>gmail<dot>com
> > > > Linux User #395088
> > > >
> > > > FWD: 741664
> > > > MSN: asado<at>lamorcilla<dot>com<dot>ar
> > > > ICQ: 74005793
> > > >
> > > >
> > > > Open your mind, use open source.
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> >
> >
> > --
> > Facundo Ameal.
> > fameal<at>gmail<dot>com
> > Linux User #395088
> >
> > FWD: 741664
> > MSN: asado<at>lamorcilla<dot>com<dot>ar
> > ICQ: 74005793
> >
> >
> > Open your mind, use open source.
> > _______________________________________________
> > --Bandwidth and Colocation provided by Easynews.com --
> >
> > Asterisk-Users mailing list
> > To UNSUBSCRIBE or update options visit:
> >    http://lists.digium.com/mailman/listinfo/asterisk-users
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