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DSL internet access providers and alarm-system service providers are finding out - sometimes the hard way - that DSL and home alarm systems are often incompatible. In fact most alarm systems can disconect DSL signals when an alarm call is generated, or will interfear with DSL signals when there is no alarm at all.
This DSL filter is an inexpensive way to keep telephone line broadband/networking services and home alarm systems working together. The Z-A431PJ3X alarm filter from Excelsus is simply the best solution for those who have DSL, and an alarm system.
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