Re: [PC-A]<--->[Mobile Phone-A] <- - - - - - -> [Mobile Phone-B] <--->[PC-B]

On Thu, 2007-03-29 at 02:11 -0700, Albert Goodwill wrote:
Hey,

I want to send and receive shot text (and if possible, binary) data
between two PCs.
The link between PCs will be low-cost off the shelf mobile phones (may
be from second hand stores).

[PC-A]<--->[Mobile Phone-A] <- - - - - - -> [Mobile Phone-B] <--->[PC-
B]

In this configuration "[PC-A]<--->[Mobile Phone-A]" pair will be
stationary and the "[Mobile Phone-B] <--->[PC-B]" pair will be mobile
in a car (ideally a mobile robot).

I do not have experience with the mobile phone interface and I would
like to ask expert technical advise on the following questions;

[*] Which (low-cost) brand/model phones have RS232 interface to
connect it to PC?

I believe some of the old nokia phones do.

[*] Is it possible to use modem's AT command (or something similar)
to dial remote phone and send text (or binary message) directly, like
PC to PC modem connection?

In the March and April 2007 issues of EPE magazine
(http://www.epemag.wimborne.co.uk/index.html) there is a construction
project describing remote control of devices via SMS messages using a
nokia phone whose RS232 port is interfaced to an ATMEL microcontroller.

[*] Or does the telephone exchange should store the message and
forward ot to destination when everit want?


VKC

.

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