CTI Products NCB/IM with Internal PSTN Modem - Manual (Page 48)

CTI Products, Inc. NCB/IM User Guide
Appendix E. Troubleshooting 42
Does not illuminate within 45
seconds of illumination of
“OH” LED on originating
NCB when using a Dial-
Up Line.
1. OPTION A Switch 1 is not set correctly.
2. Incorrect dial string is being used by
originating NCB. (While initiating a
dial-up connection, and with a handset
connected to the AUDIO connector of
the originating NCB, the dial tone,
followed by the dial sequence, followed
by the repeating busy signal, can be
heard.)
3. Dial-up line is not operating from the
telco switching equipment to the
answering NCB. (While initiating a dial-
up connection, and with a handset
connected to the AUDIO connector of
the originating NCB, the dial tone,
followed by the dial sequence, followed
by the repeating ringing signal, can be
heard.)
4. Defective modem.
1. Verify answering NCB’s OPTION A
Switch 1is up (Auto Answer Enabled),
then press “RESET”.
2. Verify dial string.
3. Contact dial-up line provider for line
status.
4. Call CTI Products, Customer Support
(+1-513-595-5900), to arrange to
return unit for evaluation/repair.