Rating: 
Summary: Big Punch in a Small Box
Review: The AT&T 435 Caller ID unit is excellent. It pack a bunch of great features in a small box. Display is easy to read. Setup was a snap. It has many of the features the more expensive boxes have. Don't waste your money buying one of them. This is the absolute best bargin for a great caller id. I like the real time clock read out that stays on all the time not just popping up when a call comes in. Aonther great feature is the call back button.It's the best caller id I have ever owned.
Rating: 
Summary: Passes two lines (but operates on primary line only)
Review: This is probably the best caller ID that I've had (and I've tried several). One of the things that I like is that it actually passes all four wires (two pairs) through to the phone, which allows it to be used with two-line phones without adding a splitter and more cable. You have to use four wire cables though, and not the cheaper 2 wire single line cables it comes with. It only shows the caller ID info on calls coming in on the primary line, however (except at my house where the crosstalk between lines is extreme). The "voice mail message waiting" indicator (a flashing light) is a great feature.
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