Multi-Tech Systems MT9234ZBA-V Calling Procedures, Password-Only Callback, Number-Entry Callback

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Chapter 5 – Callback Security

Calling Procedures

Use the following procedures to call a modem that has callback security enabled. Note that Autoanswer must be enabled on the calling modem (S0=1).

Password-Only Callback

Use this procedure when calling from a fixed location.

1.Using a data communications program such as HyperTerminal, dial the number of the callback modem.

2.When the connection is established, the callback modem responds with the following message:

Password>

3.Type the password corresponding to the phone number for your modem. Press ENTER. You have three attempts or one minute to enter a valid password.

4.If the password is valid, the following message appears, and the modems disconnect:

OK Disconnecting

5.After the delay specified by the #CBDn command, the callback modem calls the number associated with the password. If the callback modem is unable to establish a connection, it tries again, up to the number of attempts specified by the #CBAn command.

6.After the modems reconnect, the following message reappears:

Password>

7.Type the same password that you used to initiate the call. You are allowed three attempts to enter the password, after which you will be disconnected.

8.If the password is valid, the following message appears and the modems establish a working connection:

OK Connecting

Number-Entry Callback

Mobile callers should use this procedure when calling from a phone number different from that stored with the password. The password that is used must be set up for optional number-entry callback.

1.Using a data communications program such as HyperTerminal, dial the number of the callback modem.

2.When the connection is established, the callback modem responds with the following message:

Password>

3.Type a number-entry password, press the plus key (+), type ATDT and the number to call back to, and press ENTER. You have three attempts or one minute to enter a valid password.

Note: When you type your phone number, be sure to include the long distance and area codes if they are needed.

4.If the password is valid, the following message appears, and the modems disconnect:

OK Disconnecting

5.After the delay specified by the #CBDn command, the callback modem calls the number that you entered after the + character. If the callback modem is unable to establish a connection, it tries again, up to the number of attempts specified by the #CBAn command.

6.After the modems reconnect, the following message reappears:

Password>

7.Type the same password that you used to initiate the call. You are allowed three attempts to enter the password, after which you will be disconnected.

8.If the password is valid, the following message appears and the modems establish a working connection:

OK Connecting

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Multi-Tech Systems, Inc. MT9234ZBA-Series User Guide (S000387C)

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Contents MultiModem ZBA PN S000387C, Version C Copyright TrademarksPatents World HeadquartersContents AT Commands Info FeaturesIntroduction Technical Specifications CE MarkInstallation Safety WarningsChange the Internal Jumpers Opening the ModemChanging the Voice Jumper Connect the Modem to Your PC Connect the Modem to the AC Power Outlet Power-On TestInstall the Modem Driver Windows InstallerPage Configure the Modem for Your Country or Region Using the Global Wizard to Configure Your ModemUsing AT Commands to Configure Your Modem Click Initial Setup and Country/Region SelectionSetup Connecting to the InternetOperation About the Front PanelChanging the Setup Password Remote ConfigurationChanging the Remote Escape Character Callback Security Changing the Setup PasswordTurning Callback Security On and Off Setting Callback Security Message Parity Assigning Callback Passwords and Phone NumbersPassword-Only Callback Calling ProceduresNumber-Entry Callback Extension-Entry Callback Direct ConnectionCallback Security Commands Callback Assignments FormNone of the Indicators Light TroubleshootingModem Does Not Respond to Commands Modem Cannot Connect When Dialing Page Data Is Being Lost There Are Garbage Characters on the MonitorModem Doesn’t Work with Caller ID Fax and Data Software Can’t Run at the Same TimeDownload the Upgrade File Appendix a Upgrading the Modem’s FirmwareIdentify the Modem Firmware Identify the Current Firmware VersionExtract the Upgrade Files Upgrade the Modem’s FirmwareRestore Your Parameters Clear Your Stored ParametersFCC Part 15 Regulation Appendix B Regulatory ComplianceFCC Part 68 Telecom EMC, Safety and R&TTE Directive Compliance Canadian Limitations NoticeIndustry Canada Thailand ApprovalSouth African Statement New Zealand Telecom Warning NoticeJapan Requirements Brazil Special Cable for MT9234ZBA model only Special phone cable is required for regulatory complianceWeee Waste Electrical and Electronic Equipment Statement Appendix C Environmental InformationReach Statement Appendix C Environmental Info Rohs HT/TS Substance Concentration CR6+Appendix D Installing a Modem under Linux Configure the Modem for your Country or Region Appendix E Connecting to a Cisco RouterConfigure for Callback Security in Direct Connect Mode Remote Configuration Console Port Final SetupConsole Port Connections AT commands Index
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MT9234ZBA-V, MT9234ZBA specifications

Multi-Tech Systems has long been a trusted name in the field of communication technology, and its MT9234ZBA and MT9234ZBA-V modem products exemplify the company's commitment to delivering robust and reliable connectivity solutions. These modems are ideal for a range of applications, including telephony, data communication, and remote monitoring, making them a versatile choice for both personal and professional use.

One of the standout features of the MT9234ZBA and MT9234ZBA-V is their high-speed data transmission capabilities. Both models support data rates of up to 56 Kbps, ensuring efficient and swift data transfer for various applications. This allows users to experience minimal latency during downloads and uploads, appealing to those who depend on timely and reliable data delivery.

These modems utilize advanced technologies, such as V.92 and V.90 protocols, which enable users to benefit from features like quick connect, thereby reducing the time it takes to establish a connection. Additionally, the modems support both analog and digital lines, making them adaptable for different environments and infrastructures.

Another notable characteristic of the MT9234ZBA and MT9234ZBA-V modems is their compatibility with a wide range of operating systems, including various versions of Windows, Linux, and Mac OS. This cross-platform support ensures that users can easily integrate these modems into their existing software environments without encountering significant compatibility issues.

The design and construction of these modems are also worth mentioning. They are compact and lightweight, making them easy to install and reposition as needed. Their robust construction ensures longevity, which is crucial for users in environments where durability is paramount.

For those concerned about security, Multi-Tech Systems has integrated multiple security features within these modems. This includes support for encryption protocols, ensuring that data transmitted over the modem remains secure and protected from unauthorized access.

In conclusion, the MT9234ZBA and MT9234ZBA-V by Multi-Tech Systems represent an excellent choice for anyone in need of reliable and high-speed modem solutions. With their advanced features, compatibility with various operating systems, and emphasis on security, these modems stand out in the crowded telecommunications market. Whether for home use or in a professional setting, the MT9234ZBA and MT9234ZBA-V offer robust solutions for modern communication needs.
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