Home > Consumer Reviews > 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 )

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).

This phone extension works perfectly. Getting it sync'd with the base station was a snap. Voice quality and range are great. I did a lot of research on cordless phones and the AT&T has everything I wanted and performs like a champ.

i switched from 2355 att to this (see my post)
after the systems handsets died and cant be seen well

i just bought the 2 extra expansions now i got 4 hand sets
PHONE is WONDERFUL
i LOVE the blue certain colors are bad on my eyes
the LCD uses dots to creeate the info instead of boxes
and i had it a year and my 2 older handsets are fine
i like the cell phone look
button configuration
and mail icon just like a cell phone
im getting the 2 handsets thurs and the 2300 going in trash

This expansion phone is a great addition to the base system. I was a bit surprised to learn that my base would only allow four expansion handsets (I guess I should have read that manual a bit more closely, huh?). I would add a handset in every room if I could The sound is clear and there are nice options for different levels of rings (particuarly valuable if you like to take those long Saturday afternoon naps).