Multi-Tech Systems MTCBA-C-U Troubleshooting Frequently Asked Questions, Troubleshooting Examples

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Chapter 4 – Troubleshooting and Frequently Asked Questions

Chapter 4 – Troubleshooting and

Frequently Asked Questions

Troubleshooting Examples

Situation A: The modem does not respond through the USB link

If the wireless MultiModem does not respond through the USB link upon an attempted transmission of data or voice signals, see the table below for possible causes and solutions.

Solutions for ‘no connection through serial link’ situation

If the

Then ask …

Action

modem

 

 

returns …

 

 

 

Is the communication

In communications program, verify that modem

 

program properly

parameters have been set to the values shown here:

 

configured?

Data bits = 8

 

 

Parity = none

 

 

Stop Bits = 1

 

 

Baud = 115200 bps

 

Is another program

Close any such application program.

 

interfering with the

 

 

communication

 

 

program?

 

Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide

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Contents MultiModem Cdma USB S000345G, Revision G Copyright MultiModem Cdma USB User Guide Wireless ModemRevision History Revision Date Description Trademarks and LogosContents Features Product Description SpecificationsProduct Description ModelsApplication Types Wireless MultiModem used in remote ATM applicationApplication Overview Benefits/Features in Applications General Safety SafetyRF Interference Issues Vehicle SafetyYour Responsibility Maintenance of Your ModemPackage Contents Mode Description SpecificationsFunctions Cdma USB Modes Electrical CharacteristersAT Command Information Antenna/RF SpecificationsInterfaces LEDsHook up the Antenna and USB Cable Activation InstallationActivate Your Wireless Account Attach the Modem to a Flat Surface Optional Handset Connection OptionalPage Installing the Modem Driver in Windows XP/2003 Install the Modem DriverPart a for Windows XP/2003 Installing the USB Driver IntroductionClick Continue Anyway Completing the Found New Hardware Wizard screen appears Part C for Windows XP/2003 Installing the Modem INF File Part a for Windows 2000 Installing the USB Driver Installing the Modem Driver in WindowsPage Part B for Windows 2000 Associating PC Port with USB Driver Part C for Windows 2000 Installing the Modem INF File Examples of Useful AT Commands Using Your Wireless ModemPhone Numbers for the Wireless Modem Establishing a Voice Call Establishing a Circuit-Switched Data CSD ConnectionAnswering a Circuit-Switched Data CSD Connection Using Short Message Services SMS Send Example Sending an SMS message SMS ExamplesRequirements Internet AccessConnecting to the Cdma Network for Internet Access Create Your Dial-Up Connection in Windows XP/2003 Disconnecting the ConnectionMobile PhoneTools Troubleshooting Examples Troubleshooting Frequently Asked QuestionsWhy does the modem answer and then do nothing? Frequently Asked QuestionsJust received this modem, what do I need to do? Who are the carriers?Modem will not answer What is the max supported serial baud rate?Modem answers, but does nothing How does faxing work?Reference Information Wireless Modem Reference InformationGeneral Etsi contactRepair Procedures for U.S. and Canadian Customers Appendix a Warranty and RepairsMulti-Tech Warranty Statement Repair Procedures for International Distributors Repair Procedures for International CustomersReplacement Parts Outside U.S.A. and CanadaJuly