Ring-Down Circuit
provides instant Hot-Line intercom
between two phones.
Go up to 2.6 miles from box.
FREE SHIPPING in the USA.
Product Description
Great for use with no-dial/no-memory phones. When either phone goes off-hook, the other phone rings. Provides 2 seconds of dial tone and ring-back signal to the calling phone. Uses simple RJ11 modular jacks. You can have up to 2.6 miles of 24 gage wire between phones. Even works with cordless phones. (Phones are not included.)
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