"error reading comm device" on Nokia 6020

[gajapathy]

Am getting an error message with Nokia 6020 & CA-42 data cable while sending a message using the AT command using VB.

MSComm1.Output = "AT+CMGF=1" & vbCrLf
Sleep 500
MSComm1.Output = "AT+CMGS=98401111111" & vbCrLf 'dummy mobile no.
Sleep 1000
MSComm1.Output = "Hello This is my test message"
Sleep 2000
sMsg = MSComm1.Input
When I try to execute the above commands am getting the "Error reading comm device" error.

Pls help me to resolve this issue.

PS/FYI: Am able to send & receive the messages using the same AT commands with HyperTerminal.

[Dharmesh2000]

Hi...
I am getting same problem. I am using nokia 6230 and DKU-2. I can send SMS but get same error in reading comm device. Would you say which OS u r using? It might be problem due to OS, but I don't know?