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Re: Just thinking... GPRS, 3G
As I said, I'm more of a radio man, so I'm a bit out of my depth on IP
addressing Nat etc..... I'll ask one of teh gprs guys in work on Monday for
a bit more detail.
Eamon
----- Original Message -----
From: "Roger" <roger@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Friday, March 08, 2002 11:59 PM
Subject: RE: [ukha_d] Just thinking... GPRS, 3G
> But if the phone opens the session you don't care if the phone's
address
is
> translated through NAT
>
> > Even with the SMS used to activate, I still dont think you
> > can access the
> > phones IP address from outside (ie the internet)!!
> > ----- Original Message -----
> > From: "Roger" <roger@xxxxxxx>
> > To: <ukha_d@xxxxxxx>
> > Sent: Friday, March 08, 2002 9:19 PM
> > Subject: RE: [ukha_d] Just thinking... GPRS, 3G
> >
> >
> > > You are right, the phone must initiate the session... but
> > you could send a
> > > SMS to kick the phone to open a session
> > >
> > > One problem is that the connection is asymetric with only
> > one channel
> > being
> > > used on the uplink so the uplink speed is about the same as
> > data over GSM
> > >
> > > Siemens have a nice new GPRS module though
> > >
> > > Roger Shingler
> > >
> > > > I'm not 100% about this, but you cannot acces your GPRS
> > > > phones IP address
> > > > from the internet as far as I'm aware. I work in the
mobile
> > > > phone business,
> > > > but more on the radio side of it. When GPRS came out I
was
> > > > thinking along
> > > > the lines of Mark, so made some queries with the GPRS
guys,
> > > > and they said
> > > > that at the moment you cannot access your gprs phone
from the net.
> > > >
> > > > Eamon
> > > > ----- Original Message -----
> > > > From: "Andy Laurence"
<andylaurence@xxxxxxx>
> > > > To: <ukha_d@xxxxxxx>
> > > > Sent: Friday, March 08, 2002 1:40 PM
> > > > Subject: Re: [ukha_d] Just thinking... GPRS, 3G
> > > >
> > > >
> > > > > > How likely is it that in the (near) future I
could add
> > > > some sort of GPRS
> > > > > or 3G mobile
> > > > > > module to my HA server to allow this?
Obviuosly I'd need
> > > > some sort of
> > > > > tarrif that took
> > > > > > advantage of the always on aspects of these
services
> > > > without a crippling
> > > > > subsription?
> > > > >
> > > > > You can add a GPRS connection to a PC now. In
fact, my
> > > > Ericsson T39 will
> > > > > connect to the Internet via GPRS now and act as a
modem for
> > > > any machine
> > > > with
> > > > > a Bluetooth or IrDA connection. I'm not sure how
they
> > deal with IP
> > > > > addresses and allocation. I suppose as it's
always on, you
> > > > must always
> > > > have
> > > > > an IP address. If so, http://www.dyndns.org or
> > > > http://www.dns2go.com
> > > > would
> > > > > be capable of keeping you easily accessible. Of
course,
> > > > they may use
> > > > > proprietry systems with a gateway to the Internet,
in which
> > > > case you're
> > > > > scuppered :-(
> > > > >
> > > > > Andy
> > > > > --
> > > > > PC-Based Multimedia System
> > > > > http://www.andylaurence.pwp.blueyonder.co.uk/pcbmms
> > > > > Get paid to receive SMS
> > > > > http://www.dynamicsms.com.au/intro.asp?ref=07789817509&refc=429
> > > > >
> > > > >
> > > > >
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