Cisco DPC3928 DOCSIS User Manual page 60

Chapter 5 Troubleshooting the D OCSIS Wireless Residential Voice Gateway
There may be a problem with your home telephone wiring. Use a telephone and
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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
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from your home telephone wiring.
Your telephone service may not be enabled from your cable telephony service
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provider. Contact your cable telephony service provider for more information.
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