Question about Arris SURFboard SB5120 Modem
When the tel light blinks this indicates that the line is in use. To trouble shoot this issue you will need to connect a phone directly to the tel 1 port of your modem. If you have dial tone when directly connect that means that there is an issue with the internal wiring of the home. If you still do not have any dial tone with the phone directly connect than there is an issue with the modem and it needs to be replaced.
I hope that information above has helped is some way.
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Posted on Sep 01, 2010
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Posted on Jan 02, 2017
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