Dne Mon, 02 Apr 2007 10:57:34 +0200 Petros Tavridis  
<[EMAIL PROTECTED]> napsal/-a:


> If you mean compatible with the AT commandset then YES it is.In fact I  
> have used Windows Hyperterminal + other terminals

OK. If this the case, then it looks like a problem with
supplying of modem cable. The easiest way how to verify
this hyphothesis should be to modify source of
TBlockSerial.Config method:

# find-out line SetCommState at the end of this method

# insert before that line a code:
   dcb.Flags := dcb_RtsControlEnable or dcb_Binary;

# if it does not work, change the code and try again
   dcb.Flags := dcb_RtsControlHandshake or dcb_DtrControlEnable or  
dcb_Binary;

# if it still does not work, I have no more ideas


HTH, pf

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