Panasonic KX-TG6511B DECT 6.0 PLUS Expandable Digital Cordless Phone - Clear call quality. Good basic phone

My previous DECT 6 phone broke recently and I picked this one because I don't need answering machine.
This is 2010 model from Panasonic without the answering machine. If you are looking for answering machine, explore KX-TG4031B which is similar to this one with answering machine.

Cons:
- It takes 3 to 4 seconds to open the phone book, i just have 15 contacts stored (half star rating less for this).
- No Talking Caller ID on this model as advertised in the item description (half star rating less for this).
- Can save only 50 numbers in the phone book.
- Speaker phone exists only in the handset not in the base. I think this is same for most basic phones in the market.

Pros:
- Can conference 2 outgoing calls like we do in cell phone.
- Great call quality both using handset and speaker phone, but i have not noticed the call quality difference between DECT 6 and DECT 6 PLUS technology.
- Excellent range and changes to ECO mode when the handset is closer to the base during the call to increase talk time.
- Great battery life. After the full battery charge, I used this phone continuously for 2 hours and I still see 2 bars out of 3 in the battery indicator.
- Light weight handset. The handset uses 2 rechargeable AAA batteries which is easy to get.
- Large buttons in the number pad. The screen is clear and you can see the caller ids clearly.
- I am using one handset but this system can be Expandable up to 6 handsets.