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Leased Line ISDN .......................................................................86
12 Security Functions .......................................................88
Security Types and Levels .........................................................88
Level 1 security .......................................................................... 89
Level 2 security .......................................................................... 89
Level 3 security .......................................................................... 89
Setting and Modifying Passwords ............................................90
Non-password Auto Call Back Function .................................91
13 Upgrading Your TA128.................................................94
Upgrading with Flash EPROM ................................................94
Kernel Mode............................................................................... 95
14 DTE Port 2.....................................................................96
Selection of the Two DTE Port Mode .......................................96
Configuring DTE Port 2.............................................................97
Basic "AT" Command Set......................................................... 98
Extended "AT&" Command Set............................................. 101
Setting of DTE port 2 Speed ................................................... 102
DTE Port 2 Call Control...........................................................103
15 Diagnostics.................................................................104
Diagnostics .................................................................................104
Power-on Self-test.................................................................... 104
ISDN Loopback test (AT&T9)................................................ 105
Loopback with Self-test (AT&T10) ........................................ 105
B1/B2 Loopback with Self-test (AT&T11)............................. 105
The Diagnostic Command (ATCG)........................................ 106
Resetting The TA128 ................................................................107
Using The Embedded Protocol Analyzer...............................107
Capturing the Protocol Data.................................................... 108
Analyzing the Captured Data.................................................. 109
16 AT Command Set Reference......................................112