Modem noise on phone

by Judnel - 4/19/12 2:18 PM

When using the telephone, there is a hissing background noise & sometimes a squeal & beeps. The noise goes away when the modem is unplugged from the phone jack.
All phones have filters on them. The modem is plugged into a phone jack that is direct wired to the NID.
This noise started a few months ago after some windstorms.

Technical info:
Westell G90-610015-20 ADSL+ MODEM (3 yrs old & provided by Verizon. I think I own it, not leased. Plugged directly into the electric outlet & phone jack.)
Belkin F7D1301 v1 Basic Wireless Router (2 yrs old)
HP Photosmart Premium C309g-m (3 yrs old)
HP Pavilion BK290AA-ABA s5304y (3 yrs old)
HP G62 Notebook PC (1 yr old)
Verizon DSL

What should be done to get rid of the noise? Thanks.