Multi-Tech Systems PN S000408C manual Callback Security, Setup Procedures

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Chapter 6 – Callback Security

Chapter 6 - Callback Security

This chapter describes how to use callback security with your modem.

Callback security protects your network from unauthorized access and helps control long distance costs. When callback security is enabled, all callers are requested to enter a password. If the password is invalid, the caller can try twice more before the modem hangs up. If the password is valid, the modem hangs up and returns the call by dialing the phone number associated with the password.

It is possible to implement password protection without callback by storing a hyphen (-) before the callback phone number. The caller must then append a hyphen to his password to establish the direct connection.

The modem can store up to 30 callback phone numbers and 30 callback passwords. Phone numbers can be up to 30 characters long and can contain the pause (,) and wait (W) characters in addition to the digits and characters normally found on a touch-tone keypad. Passwords can be up to 10 characters long.

Callback phone numbers are associated with callback passwords by being assigned to the same callback memory location. For example, if you assign the password “APRICOT” to memory location 16 and, in a separate operation, also assign phone number 6127853000 to memory location 16, the modem calls phone number 6127853000 when it receives the password “APRICOT.”

Because there is no way to examine the passwords and phone numbers stored in the modem, it is important to write them down as you enter them. A form that you can print out for this purpose is provided on the last page of this chapter.

Setup Procedures

Turning Callback Security On and Off

Autoanswer must be enabled (S0=1 or S0=2) for callback security to work.

AT Command Method

1.Open a terminal program, such as HyperTerminal.

2.In the terminal window, type one of the following commands:

•To turn on callback security, type AT#DB1 and press ENTER. With remote callback security turned on, each caller is asked to enter a password, then is disconnected and called back by the modem. Also, dialing number locations 0–3, for use with the DS=y dialing command, are replaced by callback dialing number locations 1–30.

•To turn off callback security, type AT#DB0 and press ENTER. Callers no longer need a password to connect to the modem, the modem is unable to call them back, and stored dialing number locations 0–3 become available.

Multi-Tech Systems, Inc. MT5600BA-V92 User Guide

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Contents MultiModem Revision Date Description Table of Contents Features Product Description FeaturesProduct Description Safety Warnings About AT CommandsTechnical Specifications Modem CompatibilityOperating Temperature Connect the Modem to Your System InstallationTwo-Wire or Four-Wire Leased Line Connection Connect the Modem to Your PCPower-On Test Install the Modem DriverConnect the Modem to the AC Power Outlet Installing the Modem DriverSetting Your Country or Region Code Using the LCD Panel Country or Region CodesUsing the Global Wizard Using AT CommandsInstall PhoneTools Modem Configuration Using the Front PanelLED Indicators Liquid Crystal Display LCD Option SelectionStatus Trunk Basic Options Trunk Basic Options Trunk Advanced Options Trunk Advanced Options Trunk Remote Configuration Options Trunk Diagnostic Options TrunkPhone Number Memory Options Trunk Caller ID Options TrunkSetting Country/Region Codes Trunk Caller ID Region SelectFunctionality of Menu Options StatusBasic Options Online OptionsCommand Mode Options Advanced Options RS232 OptionsCallback Security Diagnostic Options Remote Configuration OptionsPhone Number Memory Options Caller ID Options Region Select OptionsTwo-Wire / Four-Wire Setup Leased Line OperationFour-Wire Setup Dial BackupDial Backup and Leased Line Restore Setup Basic Procedure Remote ConfigurationSetup Changing the Remote Configuration Password Changing the Remote Escape Character Callback Security Setup ProceduresTurning Callback Security On and Off Assigning Callback Passwords Front Panel MethodAssigning Callback Phone Numbers Calling Procedure Callback Security Commands Default DescriptionTroubleshooting None of the Indicators LightModem Does Not Respond to Commands Modem Cannot Connect When DialingModem Cannot Connect When Answering Modem Disconnects While OnlineThere Are Garbage Characters on the Monitor File Transfer Is Slower Than It Should BeData Is Being Lost Modem Doesn’t Work with Caller IDAppendix a Regulatory Compliance FCC Part 68 TelecomCanadian Limitations Notice EMC, Safety, and R&TTE Directive ComplianceInternational Modem Restrictions New Zealand Telecom Warning Notice South African NoticeIntroduction Upgrade OverviewAppendix B Upgrading Firmware Identify the Modem FirmwareUpgrade the Modem’s Firmware Download the Upgrade FileExtract the Upgrade Files Clear Your Stored ParametersRestore Your Parameters Using the Modem to Call the Internet Appendix C Installing a Modem Under LinuxInstallation Standard Linux Serial Port DefinitionsCalling the ISP Answering CallsAppendix D Pin Descriptions RS-232 Pin DescriptionsRS-232 Cable Pinouts Leased Line PinoutsWeee Directive Appendix F Rohs HT/TS Substance Concentration Index #DBRegisters

PN S000408C specifications

The Multi-Tech Systems PN S000408C is a versatile and compact communication device designed for a wide range of applications in various industries. This device is primarily known for its robust performance, making it an ideal choice for developing Internet of Things (IoT) solutions, machine-to-machine (M2M) communications, and other telemetry applications.

One of the main features of the S000408C is its ability to support multiple communication protocols, which enhances its flexibility and interoperability with different systems. This device can seamlessly integrate with cellular, Ethernet, and serial interfaces, providing users the capability to implement diverse connectivity solutions. Its versatility enables it to function effectively in remote monitoring, data logging, and industrial automation scenarios.

The S000408C is engineered to work with multiple wireless technologies, including LTE, GSM, and CDMA, ensuring reliable connectivity across various geographical locations. This feature is essential for applications where consistent communication is necessary, such as in asset tracking and fleet management. Additionally, the device is compatible with various network configurations, making it suitable for both urban and remote deployments.

In terms of characteristics, the device stands out with its compact design, which allows for easy installation even in space-constrained environments. It features a rugged enclosure that is built to withstand harsh conditions, making it ideal for outdoor use. The S000408C is also equipped with power management capabilities, allowing for energy-efficient operation, which is crucial for battery-powered applications.

Moreover, the Multi-Tech S000408C prioritizes security, as it comes with built-in encryption features to protect data integrity during transmission. This aspect is particularly important for industries dealing with sensitive information, such as healthcare and finance.

The configuration process of the S000408C is straightforward, supported by comprehensive documentation and user-friendly software tools. This makes it accessible to developers and engineers, enabling them to rapidly deploy solutions without extensive training.

In conclusion, the Multi-Tech Systems PN S000408C is a powerful tool for businesses and developers aiming to harness the power of connectivity in their operations. With its multi-protocol support, robustness, and security features, it is well-positioned to meet the demands of today's connected world. As industries continue to evolve with the integration of IoT technologies, devices like the S000408C will remain at the forefront of enabling communication and operational efficiency.
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