ATTW and Data

I know from searching high and low that ATT does not support data over TDMA.
However, if I dial my ISP from the phone, it connects just fine and I hear
all the computer gibberish on the line. It seems to me that I should be able
to use this connection on my laptop. I'm not looking for broadband
throughput here, just ocassionally the ability to log on and check email
when I'm not at my home or office computer.

Does ATT lock their phones somehow to prevent the computer from dialing thru
it, thereby preventing data calls? Is there a way to unlock it? Is there
perhaps an initialization string that I can use to force the phone to dial?
As it stands, when I press dial on my connection software, the phone comes
alive, beeps, and I get an error (the remote computer did not respond) on
the laptop... the cell phone never dials. This is all with a V60 color using
a USB cable. FWIW, the computer recognizes the phone just fine (as a USB
modem), and I can transfer phone book entries, etc with no problem.

I just can't believe that no one's cracked this seemingly simple problem by
now. Thanks for any insight.

--Mike

---

› See More: ATTW and Data

Lemme just bump this one up...anyone?

--Mike

"mgg" <[email protected]> wrote in message
news:[email protected]...
>I know from searching high and low that ATT does not support data over
>TDMA. However, if I dial my ISP from the phone, it connects just fine and I
>hear all the computer gibberish on the line. It seems to me that I should
>be able to use this connection on my laptop. I'm not looking for broadband
>throughput here, just ocassionally the ability to log on and check email
>when I'm not at my home or office computer.
>
> Does ATT lock their phones somehow to prevent the computer from dialing
> thru it, thereby preventing data calls? Is there a way to unlock it? Is
> there perhaps an initialization string that I can use to force the phone
> to dial? As it stands, when I press dial on my connection software, the
> phone comes alive, beeps, and I get an error (the remote computer did not
> respond) on the laptop... the cell phone never dials. This is all with a
> V60 color using a USB cable. FWIW, the computer recognizes the phone just
> fine (as a USB modem), and I can transfer phone book entries, etc with no
> problem.
>
> I just can't believe that no one's cracked this seemingly simple problem
> by now. Thanks for any insight.
>
> --Mike
>

Lemme just bump this one up...anyone?

--Mike

"mgg" <[email protected]> wrote in message
news:[email protected]...
>I know from searching high and low that ATT does not support data over
>TDMA. However, if I dial my ISP from the phone, it connects just fine and I
>hear all the computer gibberish on the line. It seems to me that I should
>be able to use this connection on my laptop. I'm not looking for broadband
>throughput here, just ocassionally the ability to log on and check email
>when I'm not at my home or office computer.
>
> Does ATT lock their phones somehow to prevent the computer from dialing
> thru it, thereby preventing data calls? Is there a way to unlock it? Is
> there perhaps an initialization string that I can use to force the phone
> to dial? As it stands, when I press dial on my connection software, the
> phone comes alive, beeps, and I get an error (the remote computer did not
> respond) on the laptop... the cell phone never dials. This is all with a
> V60 color using a USB cable. FWIW, the computer recognizes the phone just
> fine (as a USB modem), and I can transfer phone book entries, etc with no
> problem.
>
> I just can't believe that no one's cracked this seemingly simple problem
> by now. Thanks for any insight.
>
> --Mike
>

On Wed, 21 Apr 2004 03:20:30 GMT, "mgg" <[email protected]> wrote:

>Lemme just bump this one up...anyone?
>
>--Mike
>
>"mgg" <[email protected]> wrote in message
>news:[email protected]...
>>I know from searching high and low that ATT does not support data over
>>TDMA. However, if I dial my ISP from the phone, it connects just fine and I
>>hear all the computer gibberish on the line. It seems to me that I should
>>be able to use this connection on my laptop. I'm not looking for broadband
>>throughput here, just ocassionally the ability to log on and check email
>>when I'm not at my home or office computer.
>>
>> Does ATT lock their phones somehow to prevent the computer from dialing
>> thru it, thereby preventing data calls? Is there a way to unlock it? Is
>> there perhaps an initialization string that I can use to force the phone
>> to dial? As it stands, when I press dial on my connection software, the
>> phone comes alive, beeps, and I get an error (the remote computer did not
>> respond) on the laptop... the cell phone never dials. This is all with a
>> V60 color using a USB cable. FWIW, the computer recognizes the phone just
>> fine (as a USB modem), and I can transfer phone book entries, etc with no
>> problem.
>>
>> I just can't believe that no one's cracked this seemingly simple problem
>> by now. Thanks for any insight.
>>
>> --Mike
>>
>
Not going to work. The problem is that all analog modems for speeds
above 600 bits per second rely on phase modulation of the carrier.
D-AMPS, CDMA, and GSM all take your voice, and compress it. While the
wave forms and amplitudes are reasonably reproduced, the phase
relationships between them convey no information in human speech, so
there is no need to maintain those relationship in the
encoding/decoding process. As a result an analog modem will not be
able to connect succesfully over a D-AMPS/CDMA or GSM telephone. It
will probably work to some extent over AMPS, because it is analog end
to end, and since the waveforms are not reconstructed, the phase
relationships are maintained. Bluntly the method the modems use to
transfer the data in analog mode, simply don't work.

GSM and CDMA allow data transmission by replacing the digitized voice
payload with data. There is no provision within D-AMPS to do so, and
even if you did, you wouldn't be real happy. the Underlying data rate
is only about 7200bps IIRC.

On Wed, 21 Apr 2004 03:20:30 GMT, "mgg" <[email protected]> wrote:

>Lemme just bump this one up...anyone?
>
>--Mike
>
>"mgg" <[email protected]> wrote in message
>news:[email protected]...
>>I know from searching high and low that ATT does not support data over
>>TDMA. However, if I dial my ISP from the phone, it connects just fine and I
>>hear all the computer gibberish on the line. It seems to me that I should
>>be able to use this connection on my laptop. I'm not looking for broadband
>>throughput here, just ocassionally the ability to log on and check email
>>when I'm not at my home or office computer.
>>
>> Does ATT lock their phones somehow to prevent the computer from dialing
>> thru it, thereby preventing data calls? Is there a way to unlock it? Is
>> there perhaps an initialization string that I can use to force the phone
>> to dial? As it stands, when I press dial on my connection software, the
>> phone comes alive, beeps, and I get an error (the remote computer did not
>> respond) on the laptop... the cell phone never dials. This is all with a
>> V60 color using a USB cable. FWIW, the computer recognizes the phone just
>> fine (as a USB modem), and I can transfer phone book entries, etc with no
>> problem.
>>
>> I just can't believe that no one's cracked this seemingly simple problem
>> by now. Thanks for any insight.
>>
>> --Mike
>>
>
Not going to work. The problem is that all analog modems for speeds
above 600 bits per second rely on phase modulation of the carrier.
D-AMPS, CDMA, and GSM all take your voice, and compress it. While the
wave forms and amplitudes are reasonably reproduced, the phase
relationships between them convey no information in human speech, so
there is no need to maintain those relationship in the
encoding/decoding process. As a result an analog modem will not be
able to connect succesfully over a D-AMPS/CDMA or GSM telephone. It
will probably work to some extent over AMPS, because it is analog end
to end, and since the waveforms are not reconstructed, the phase
relationships are maintained. Bluntly the method the modems use to
transfer the data in analog mode, simply don't work.

GSM and CDMA allow data transmission by replacing the digitized voice
payload with data. There is no provision within D-AMPS to do so, and
even if you did, you wouldn't be real happy. the Underlying data rate
is only about 7200bps IIRC.

I use dial-up through my v600 on TMo and it works fine albeit at 9600
baud. Very slow but tolerable for checking email in a pinch. Laptop is
Bluetooth paired to phone and phone appears as modem to laptop.

From:matt weber
[email protected]

> On Wed, 21 Apr 2004 03:20:30 GMT, "mgg" <[email protected]> wrote:
>
>> Lemme just bump this one up...anyone?
>>
>> --Mike
>>
>> "mgg" <[email protected]> wrote in message
>> news:[email protected]...
>>> I know from searching high and low that ATT does not support data
>>> over TDMA. However, if I dial my ISP from the phone, it connects
>>> just fine and I hear all the computer gibberish on the line. It
>>> seems to me that I should be able to use this connection on my
>>> laptop. I'm not looking for broadband throughput here, just
>>> ocassionally the ability to log on and check email when I'm not at
>>> my home or office computer.
>>>
>>> Does ATT lock their phones somehow to prevent the computer from
>>> dialing thru it, thereby preventing data calls? Is there a way to
>>> unlock it? Is there perhaps an initialization string that I can use
>>> to force the phone to dial? As it stands, when I press dial on my
>>> connection software, the phone comes alive, beeps, and I get an
>>> error (the remote computer did not respond) on the laptop... the
>>> cell phone never dials. This is all with a V60 color using a USB
>>> cable. FWIW, the computer recognizes the phone just fine (as a USB
>>> modem), and I can transfer phone book entries, etc with no problem.
>>>
>>> I just can't believe that no one's cracked this seemingly simple
>>> problem by now. Thanks for any insight.
>>>
>>> --Mike
>>>
>>
> Not going to work. The problem is that all analog modems for speeds
> above 600 bits per second rely on phase modulation of the carrier.
> D-AMPS, CDMA, and GSM all take your voice, and compress it. While the
> wave forms and amplitudes are reasonably reproduced, the phase
> relationships between them convey no information in human speech, so
> there is no need to maintain those relationship in the
> encoding/decoding process. As a result an analog modem will not be
> able to connect succesfully over a D-AMPS/CDMA or GSM telephone. It
> will probably work to some extent over AMPS, because it is analog end
> to end, and since the waveforms are not reconstructed, the phase
> relationships are maintained. Bluntly the method the modems use to
> transfer the data in analog mode, simply don't work.
>
> GSM and CDMA allow data transmission by replacing the digitized voice
> payload with data. There is no provision within D-AMPS to do so, and
> even if you did, you wouldn't be real happy. the Underlying data rate
> is only about 7200bps IIRC.

I use dial-up through my v600 on TMo and it works fine albeit at 9600
baud. Very slow but tolerable for checking email in a pinch. Laptop is
Bluetooth paired to phone and phone appears as modem to laptop.

From:matt weber
[email protected]

> On Wed, 21 Apr 2004 03:20:30 GMT, "mgg" <[email protected]> wrote:
>
>> Lemme just bump this one up...anyone?
>>
>> --Mike
>>
>> "mgg" <[email protected]> wrote in message
>> news:[email protected]...
>>> I know from searching high and low that ATT does not support data
>>> over TDMA. However, if I dial my ISP from the phone, it connects
>>> just fine and I hear all the computer gibberish on the line. It
>>> seems to me that I should be able to use this connection on my
>>> laptop. I'm not looking for broadband throughput here, just
>>> ocassionally the ability to log on and check email when I'm not at
>>> my home or office computer.
>>>
>>> Does ATT lock their phones somehow to prevent the computer from
>>> dialing thru it, thereby preventing data calls? Is there a way to
>>> unlock it? Is there perhaps an initialization string that I can use
>>> to force the phone to dial? As it stands, when I press dial on my
>>> connection software, the phone comes alive, beeps, and I get an
>>> error (the remote computer did not respond) on the laptop... the
>>> cell phone never dials. This is all with a V60 color using a USB
>>> cable. FWIW, the computer recognizes the phone just fine (as a USB
>>> modem), and I can transfer phone book entries, etc with no problem.
>>>
>>> I just can't believe that no one's cracked this seemingly simple
>>> problem by now. Thanks for any insight.
>>>
>>> --Mike
>>>
>>
> Not going to work. The problem is that all analog modems for speeds
> above 600 bits per second rely on phase modulation of the carrier.
> D-AMPS, CDMA, and GSM all take your voice, and compress it. While the
> wave forms and amplitudes are reasonably reproduced, the phase
> relationships between them convey no information in human speech, so
> there is no need to maintain those relationship in the
> encoding/decoding process. As a result an analog modem will not be
> able to connect succesfully over a D-AMPS/CDMA or GSM telephone. It
> will probably work to some extent over AMPS, because it is analog end
> to end, and since the waveforms are not reconstructed, the phase
> relationships are maintained. Bluntly the method the modems use to
> transfer the data in analog mode, simply don't work.
>
> GSM and CDMA allow data transmission by replacing the digitized voice
> payload with data. There is no provision within D-AMPS to do so, and
> even if you did, you wouldn't be real happy. the Underlying data rate
> is only about 7200bps IIRC.