Chapter 10. Troubleshooting
If the Wrong DTE Port Answers a Call
A common mistake that can easily be made is entering the SPID/ LDN pair swapped between the two DTE ports. For example, your telephone company has given you two SPID/LDN numbers as follows:
SPID1 - 201555701111 LDN1 - 5557011
SPID2 - 201555702222 LDN2 - 5557022
If you were to enter the pairs for DTE#1 as SPID1/LDN2 and SPID2/LDN1, the ISU 2x64 would get confused during incoming calls because the SPID/LDN pair does not match. Be sure to enter the SPID/LDN pairs for each DTE# as follows:
Enter SPID dte1 | Enter LDN dte1 |
201555701111 | 5557011 |
Enter SPID dte2 | Enter LDN dte2 |
201555702222 | 5557022 |
Proper entry of the SPID/LDN pair is crucial to proper operation of the ISU 2x64.
ISU 2x64 Dual Port ISDN Service Unit User Manual | 83 |
