Multi-Tech Systems MT5600BA-V92 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 NoticeRepair Procedures for U.S. and Canadian Customers Appendix B Warranty, Service, Technical SupportMulti-Tech Warranty Statement Repair Procedures for International CustomersRepair Procedures for International Distributors Replacement PartsIntroduction Upgrade OverviewAppendix C- 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 D Installing a Modem Under LinuxInstallation Standard Linux Serial Port DefinitionsCalling the ISP Answering CallsAppendix E Pin Descriptions RS-232 Pin DescriptionsRS-232 Cable Pinouts Leased Line PinoutsWeee Directive Index #DBRegisters
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MT5600BA-V92 specifications

Multi-Tech Systems MT5600BA-V92 is a versatile communication device designed for efficient data transmission over telephone lines. It is highly regarded for its reliability and performance in various applications, including point-of-sale transactions, remote monitoring, and data acquisition. One of the key features of the MT5600BA-V92 is its ability to operate at data rates of up to 56 Kbps. This high-speed modem ensures rapid data transfer, making it suitable for businesses that require quick and efficient communication.

The device supports V.92 technology, which enhances the performance of dial-up connections. V.92 provides features like cheaper call setup times, reduced latency, and improved upload speeds compared to older standards. This makes the MT5600BA-V92 an ideal choice for users who need enhanced data performance without investing in more complex networking infrastructure.

Another significant characteristic of the MT5600BA-V92 is its analog communication capabilities. The modem utilizes standard analog telephone lines for connectivity, allowing easy integration into existing telephony systems. This compatibility ensures that businesses can leverage their current infrastructure without needing substantial upgrades.

The MT5600BA-V92 integrates several features for improved functionality, including error correction and data compression technologies. These features enhance the reliability of data transmission by ensuring that lost or corrupted data packets are retransmitted, while compression reduces the amount of data sent over the line, further optimizing performance.

The modem is designed with user-friendliness in mind; it features a straightforward installation process and an intuitive configuration interface. Furthermore, it is compact and robust, making it suitable for diverse environments ranging from retail outlets to industrial applications.

The MT5600BA-V92 is also known for its durability and long life cycle, which is crucial for businesses that rely on continuous operations. Additionally, its ability to operate effectively in various conditions solidifies its position as a dependable communication solution.

In summary, the Multi-Tech Systems MT5600BA-V92 is an advanced modem that combines high-speed data transmission, analog compatibility, and robust error correction features. Its reliable performance and user-friendly design make it an excellent choice for businesses looking to enhance their communication capabilities while utilizing existing telephone infrastructure.
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