OK, I have looked for the modem's manual and found out that the AT# (AT#CLS, AT#VSM, AT#VLS.. ) commands are nowhere to be found in its AT Commands Chapter. I saw them on a web site though.

I have also tested these particular commands in a simple form made up of a txtString, cmdSendRequest and MSCOMM control.

cmdSendRequest merely does an OUTPUT of the ALLTRIM( .txtString.Value ) followed by a CHR(13) and waits for 3 secs and collects all Input values and shows it through a MESSAGEBOX.

I tried ATZ, ATI2, ATI3, ATI4 (ATI4 gave as a return value "Generic SoftK56 Data,Fax,Voice,Speakerphone PCI Modem") commands and they always return OK.

Sending the AT#s however always returned an ERROR string.

Could it be that the modem we have does not support those types of commands?

Looking forward to your reply, Jim. Thanks in advance. =)