The insys modem 56k small int is a narrow analog modem for industrial use for mounting on din rail via the rs232 interface the sps and data logger can be connected with security callback the modem allows a call to connect to a preset phone number the recording of data connections can be limited by the user only upto specific numbers the insys modem 56k small can be used internationally via at command the messagescan be sent and triggered directly via the data connection sms or fax the