Landline rings once every two hours starting at 4:15am stops at 4:15pm

[dfshipman]

Landline rings once every two hours starting at 4:15am  stops at 4:15pm    

Just started a little over a week ago.  How can it be stopped?

[KWA1]

Contact Verizon repair at 1-800-837-4966. There is a class of switch that randomly issues a metallic line test. What you will hear is either a "chirp" or a half ring. Ideally you aren't suppopsed to hear anything. If you are served by the type of switch that performs this test, it can be turned off on a per line basis.