I did try setting the encoding to encoding ascii but it doesn't seem to take. I might not be doing it correctly. here's my code:
Dim scp = New ScpClient(strIPAddress, intPort, strUsername, strPassword)
scp.ConnectionInfo.Encoding = Encoding.ASCII
Try
scp.Connect()
scp.Upload(New FileInfo(My.Computer.FileSystem.SpecialDirectories.Temp & "\blastoff.call"), "/var/spool/asterisk/callfiles/blastoff.call")
Catch ex As Exception
MessageBox.Show(ex.Message)
Finally
scp.Disconnect()
End Try