Netgear Dg934g I've A Sky Netgear DG934G Router, Which Disconnects Instantly When I Connect My Cordless Phone Only. Any Help?

I've a Sky Netgear DG934G Router, which disconnects instantly when I connect my cordless phone only. Any help? - netgear dg934g

I installed the filters and micro-internet connection is OK if I use a standard telephone cable, fueled by electronic means, and it looks as if I connect my Sky box to connect to a phone line connection.