Jim, I have problems with the values in variables, when I
get the return string form the modem.

I made a simple form for test...

* Form's method's

PROCEDURE INIT
_VFP.AUTOYIELD=.F.
WITH THISFORM.ocxCOMM
	.InputMode = 0
	.RThreshold = 1
	.SThreshold = 1
	.Settings = [9600,n,8,1]
	.RTSEnable = .F.
	.InputLen = 0
ENDWITH
* InputMode = comInputModeBinary = 1
* InputMode = comInputModeText = 0 (default)

ENDPROC
* ---------------------------
PROCEDURE waitforresponse
LPARAMETERS lnDelayInSeconds

LOCAL lnStartTime
lnStartTime = SECO()

DO WHILE SECO() <= (lnStartTime + lnDelayInSeconds) ;
		AND NOT SECO() < lnStartTime
	DOEVENTS()
ENDDO

ENDPROC

* ---------------------------
* OCX method

PROCEDURE OnComm
*** ActiveX Control Event ***
IF THIS.commevent = 2
LOCAL InString
InString = ""
	IF THIS.InBufferCount > 5
		InString =  InString + THIS.INPUT
		RETORNO_MODEM = InString
	ENDIF
ENDIF

ENDPROC

* ---------------------------
* Button 

PROCEDURE CLICK
PUBLIC lcRETORNO_MODEM
LOCAL lcModelo_modem, lcHabilitado_p_bina

IF THISFORM.ocxCOMM.PortOpen
	THISFORM.ocxCOMM.PortOpen = .F.
ENDIF
* SET STEP ON

WITH THISFORM
	.ocxCOMM.CommPort = 3
	.ocxCOMM.PortOpen = .T.
	.ocxCOMM.OUTPUT = [ATI0] + CHR(13)
	.waitforresponse(1)
ENDWITH

lcModelo_modem = RETORNO_MODEM

IF THISFORM.ocxCOMM.PortOpen
	THISFORM.ocxCOMM.PortOpen = .F.
ENDIF

WITH THISFORM
	.ocxCOMM.CommPort = 3
	.ocxCOMM.PortOpen = .T.
	.ocxCOMM.OUTPUT = [AT#CID=1] + CHR(13)
	.waitforresponse(2)
ENDWITH

lcHabilitado_p_bina = RETORNO_MODEM

If I enable the line with SET STEP ON the variables
lcModelo_modem and lcHabilitado_p_bina have the right values that I expect,
but if I disable SET STEP ON line, both variables have the old value ??

Why, I'm going crazy with this ....

Thanks in advance

Peter