33

r Pro v3.0

AT&FQ0V1X4&D2N0S37=5     Hard coded  baud rate.  Works with many 14.4 and 28.8 modems.   The added

codes  locks  the connection  baud rate to 1200 baud.   Use  S37=3 for a 300 baud connection,  and S37=6 for a

2400 baud  connection.   Some  modems  use  &F0 rather than &F.  All  0  are zeros not oh s.

AT&FQ0V1X4&D2N0S37=5\N0%C0      No  compression/error  correction.   Works with many 14.4, 28.8 and 33.6

modems.   The added  codes  turn off data compression  and error correction.   You can try using  only one of the

two additional  codes  (\N0 or %C0)  if you modem  rejects  using  both.  Use S37=3 for a 300 baud connection,

and S37=6 for a 2400 baud connection.   Some  modems  use  &F0 rather  than &F.  All  0  are zeros not oh s.

AT&F0Q0V1X4&D2&B1&K0&M0&N2     US Robotics  (3Com) string.   Works  with most  US Robotics/3Com  33.6

and 56K modems  (and some  others too).  Use &N1  (instead  of &N2)  for a 300 baud connection,  or &N3 for a

2400 baud  connection.

AT&FQ0V1X4&D2N0+MS=B103    This string has  been  found to work with some  of the newer  winmodems.   Set

the baud rate to 300 when  using  this  string.

Note: all  0  characters  in the init strings  are zeros not oh s

***More init strings  may be available  on our web site:  www.r.net

5.3

Connecting  to Carriers  Using  GSMAT

5.3.1

Make sure you are communicating with phone or modem

The first step  is to make  sure  your computer  is  talking with your mobile  phone  or wireless  modem.

Testing  with HyperTerminal:

HyperTerminal  is  a terminal  emulation  program  that comes  with Windows.   It can be used  to test

communications  with your phone or modem.   You should  perform  this test even if other applications  work

correctly with your phone  or modem.   r  Pro talks  to your phone  or modem  by addressing  its serial

port.  Other applications  may bypass  the port settings  and work even if your port settings  are orrect.

HyperTerminal  can be found  under the  Accessories   option  on your Windows  start menu.  Depending  on the

version of Windows  you are running,  it may be under a group below   Accessories   called   Communications .

If HyperTerminal  is  not installed,  you can install  it by choosing   Add/Remove Programs   from within the

Windows  control panel.  Choose  the tab labeled   Windows  Setup .  HyperTerminal  can be found  under the

 Communications   group.

After choosing  HyperTerminal  from accessories,  invoke the HyperTerminal  program  by either choosing  the

 Hyperterm  icon  from the group window,  or by choosing   HyperTerminal   from the next group of programs  on the

Windows  start menu.  If its the first  time you have run HyperTerminal,  you may be asked  to enter  your area

code.  If so, do it now.  The next screen  will  ask you for a name  for your new  connection.   The name  is not

important.   Use something  like  test .  Hit  OK . On the next screen,  among  other  things,  you are asked  for what

modem  to use  ( Connect  Using ).  Do not choose  the name  of your modem.   Instead,  choose  the name  of the

com port you entered  into r  Pro (i.e.  Direct to Com2   or  Com2 ).  Hit  OK .  The next screen  will  ask you

for  Port Settings .   Use  the settings  that were  used  when  the carrier in question  was  setup in r  Pro.

Choose   None  for flow control.

You should  now get a somewhat  blank HyperTerminal  window  with a blinking  cursor.   If you don t, then your

phone s  or modem s  com port settings  are orrect, your hardware  is  not setup correctly, or some  other

program  is using  the device.  Otherwise,  you should  now be able to type  AT   (don t type the   symbols,  and

, stands  for the carriage  return or enter key).  The letters   AT  may or may not appear  on the terminal

window.   Don t  be alarmed  if they don t.  However, in either  case, your modem  should  respond  with and  OK .  If

you don t receive an  OK  then your serial  port or modem  is  not operating  correctly and must  be fixed before

r  Pro can use  them.   If you do get an  OK , then continue  to the next step.

   ,  .