Contents
vii
Changing the Setup Password ..........................................................80
Changing the Remote Escape Character.......................................... 81
Chapter 6: Callback Security
Introduction.............................................................................................. 85
Setup Procedures.................................................................................... 85
To Change the Setup Password........................................................ 86
To Turn Callback Security On and Off............................................... 86
To Set the Parity of the Callback Security Messages .......................87
To Assign Callback Passwords and Phone Numbers .......................88
Calling Procedures ..................................................................................90
Password-Only Callback.................................................................... 90
Number-Entry Callback...................................................................... 91
Extension-Entry Callback................................................................... 92
Direct Connection............................................................................... 93
Callback Security Commands .................................................................94
Chapter 7: Solving Problems
Introduction............................................................................................ 103
None of the Indicators Light ..................................................................103
The Modem Does Not Respond to Commands.................................... 104
The Modem Dials But Cannot Connect.................................................107
The Modem Disconnects While Online................................................. 109
The Modem Cannot Connect When Answering.................................... 110
File Transfer Is Slower Than It Should Be ............................................110
Data Is Being Lost ................................................................................. 111
There Are Garbage Characters on the Monitor ....................................111
The Modem Doesn’t Work with Caller ID.............................................. 112
Fax and Data Software Can’t Run at the Same Time ..........................112
Appendix A: Regulatory Compliance
FCC Regulations for Telephone Line Interconnection.......................... 115
Canadian Limitations Notice.................................................................. 117
FCC Fax Update.................................................................................... 118
Compliance with BABT Requirements.................................................. 119