Modem access has changed in EasyBTX Version 1.1.

If modem access does not work properly check the following:

- The modem cable must include the DTR signal (Pin 20). The modem must be
  configured by an AT command to hang up when the DTR signal is deasserted.

- The Modem must be configured to produce an echo of the AT commands.

- EasyBTX waits for the string "CONNECT" after the last AT command is executed.
  If the modem sends an another string in response to the ATD command the
  the connection is not established. If, for example, the modem sends
  "DIALLING" you have to change the expected string by a dwrite command:
  
  dwrite EasyBTX expect "DIALLING"

- The timeout waiting for the the connection is 40 seconds by default.
  This can be changed by a dwrite too:
  
  dwrite EasyBTX timeout 80


The following is a list of some tested modem initialization strings:

Modem            initialization string
-----------------------------------------------------------------
ZyXEL 1496       ATZ3|AT&F&K0&N14|ATDT01910
ZyXEL 1496E      ATZ3|ATX5Q0V1&B1&C1&D3&H3&M2&N14*E0*Q0&K0|ATD01910
TWINCOM 14.400   AT&F|ATL0&Q6%C0%M0S36=3S48=0|ATDT01910
Creatix LC144VF  ATZ|AT&F1|ATDP01910
MIX Modem        ATB0|ATDP01910 (device:/dev/cum)
