13
if your telephone numbers and SPIDs (North America only) are correct. If they
are, the Port Monitor displays something similar to the text in Figure 4.
Figure 4: ISDN Port Monitor w/Successful Initialization
Explanation of Indicators
LA
: (line active) indicates a successful connection to NT-1 and ISDN service
D
: indicates correct SPID (North America only)
B1
: indicates a 64k connection on the first line (only if communicating or making
a call)
B2
: indicates a 64k connection on second line (only if communicating or making
a call)
If your ISDN service does not initialize, refer to
Chapter 6: Troubleshooting
.