User guide

Contents
4 Multi-Tech Systems, Inc. MT9234ZBA-Series User Guide
Turning Callback Security On and Off ................................................................................................................ 19
Setting Callback Security Message Parity ......................................................................................................... 20
Assigning Callback Passwords and Phone Numbers ..................................................................................... 20
Calling Procedures ................................................................................................................................................. 21
Password-Only Callback .......................................................................................................................................... 21
Number-Entry Callback ............................................................................................................................................ 22
Extension-Entry Callback ........................................................................................................................................ 22
Direct Connection ..................................................................................................................................................... 23
Callback Security Commands ................................................................................................................................. 24
Chapter 6 – Troubleshooting .................................................................................................................. 25
None of the Indicators Light ................................................................................................................................. 25
The Modem Does Not Respond to Commands ................................................................................................. 25
The Modem Cannot Connect When Dialing ....................................................................................................... 26
The Modem Disconnects While Online ............................................................................................................... 27
Modem Cannot Connect When Answering ........................................................................................................ 27
File Transfer Is Slower Than It Should Be .......................................................................................................... 28
Data Is Being Lost .................................................................................................................................................. 28
There Are Garbage Characters on the Monitor ................................................................................................. 28
The Modem Doesn’t Work with Caller ID ............................................................................................................ 29
Fax and Data Software Can’t Run at the Same Time ....................................................................................... 29
Appendix A – Upgrading the Modem’s Firmware ................................................................................ 30
Identifying the Modem Firmware ......................................................................................................................... 30
Identifying the Current Firmware Version .......................................................................................................... 30
Downloading the Upgrade File ............................................................................................................................. 30
Extracting the Upgrade Files ................................................................................................................................ 31
Clearing Your Stored Parameters ........................................................................................................................ 31
Upgrading the Modem’s Firmware ...................................................................................................................... 31
Restoring Your Parameters .................................................................................................................................. 32
Appendix B – Regulatory Compliance .................................................................................................. 33
47 CFR Part 15 Regulation Class B Devices ...................................................................................................... 33
FCC Part 68 Telecom ............................................................................................................................................. 33
Canadian Limitations Notice ................................................................................................................................ 34
Industry Canada ...................................................................................................................................................... 35
EMC, Safety and R&TTE Directive Compliance ................................................................................................ 35
International Modem Restrictions ....................................................................................................................... 36
New Zealand Telecom Warning Notice ............................................................................................................... 36
Russian Statement ................................................................................................................................................. 37
South African Statement ....................................................................................................................................... 37