E598-1 AT&T 5.8 GHz Accessory Cordless Handset for E5901 / E5902B / E5903B / E5911 / E5912B / E5913B / E5914B / E5921 / E5922B / E5923B / E5924B / E6001 / E6002B / E6012B / E6013B / E6014B / E3813B (Model# E598-1)(will not work independently )

 (27 customer reviews)

I believe I expanded a 6012B system (it looks almost exactly the same as the E598 handset) from two to four without a hitch. Frankly, I chose this expansion handset (and the original handsets) because I liked how they looked (e.g., sort of a sleek, minimal handset design with blue key lighting), but both the original and the expansions have performed solidly (e.g., calls don't drop with good quality voice, decent range, and battery life).

Just be sure to determine the maximum number of handsets your original system will handle before you buy any expansion handsets.

I purchased two extra handsets for a AT&T 5.6 ghz phone someone gave to me. My only quibble with this system is I can no longer check my voicemail from a handset, only from the base (previous Panasonic could). Second quibble is that when holding the headset to my ear and squeezing it with my shoulder if I have to use both hands for something while talking, I can easily turn off the phone mid-conversation. I hate that! Why have an off button so near one's ear!!!???? The answer would be, always have one handset hooked up to a headphone (it's so bothersome to have to stop a conversation to attach a headphone).

Bought the complete AT&T system with three sets included. Because it worked so well I added the fourth handset. I specifically bought the one that goes with my unit. It is the exactly the same as my original three sets and works well. The only complaint is that for some reason and unlike the other three sets you cannot access the menu from this unit but everything else seems to work fine including caller ID.