Cisco DPC3928 DOCSIS, User Manual, Page: 60 / 68

Chapter 5 Troubleshooting the DOCSIS Wireless Residential Voice Gateway
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There may be a problem with your home telephone wiring. Use a telephone and
connect directly to the same RJ-11 port on the back of the unit. If the dial tone is
working here but does not work at other locations in the home, a professional
may need to diagnose and repair a problem with your telephone wiring.

Verify that the telephone company has removed the previous telephone service
from your home telephone wiring.

Your telephone service may not be enabled from your cable telephony service
provider. Contact your cable telephony service provider for more information.