Skip to: | | - A great place to buy computers, computer parts, electronics, software, accessories, and DVDs online. With great prices, fast shipping, and top-rated customer service - once you know, you Newegg.

If you are reading this message, Please click this link to reload this page.(Do not use your browser's "Refresh" button). Please email us if you're running the latest version of your browser and you still see this message. - Computer Parts, Laptops, Electronics, HDTVs, Digital Cameras and More!

PremierTry Message.
Home > 
Office Solutions > 
Office Machines & Equipment > 
Telephones / VoIP > 
Cordless Phones > 
Panasonic > 
Item#: 9SIA24G1GC2087

Panasonic KX-TG6643B 1.9 GHz Digital DECT 6.0 3X Handsets Cordless Phones Integrated Answering Machine

  • Intelligent eco mode
  • Power back-up operation
  • Talking caller ID
  • Tona equalizer
  • Reversible handset design
  • Hands-free speakerphone on base & handset
  • Up to 4-way conference capability
  • Answering mac

ICON Loading...
  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Click to Compare Panasonic Models

An intelligent blend of technology and function, the Panasonic KX-TG6643B cordless answering system facilitates your daily communication at home or in a small office. Place a handset in every room for handy call dialing/receiving, or use its intercom function to talk with each other. The DECT 6.0 PLUS technology provides enhanced voice quality and longer range, while 1.9GHz frequency enables flawless, interference-free  operation in modern environments filled with Wi-Fi and 3G signals.

Take advantage of Range Boost technology for excellent clarity at extended distances. Count on Tone Equalizer to make out what exactly the caller is delivering. Learn who's calling first with Talking Caller ID features that reads aloud the caller information. And the hands-free speakerphone with 4-way conference capability offers you ultimate convenience to make conference calls.

Bring home the Panasonic KX-TG6643B cordless answering system, and enjoy a new level of functionality in your daily communication.

  • newegg DECT 6.0 PLUS Dect Plus technology takes the superb sound quality and outstanding range of DECT 6.0 phones to a whole new level. By increasing the frequency of error correction by up to 80 times, the transmission quality is improved and the phone's range is extended. Engineered to work in 1.9GHz frequency, the DECT 6.0 phones won't conflict with common wireless devices such as 2.4GHz routers, wireless keyboards and mice, microwave ovens, or other household items. And because it's digital, you'll enjoy long range and clear sound while deterring eavesdropping.
  • newegg POWER BACK-UP OPERATION (Handset) What happens to your phone when there's a power outage? Nothing, with Power Back-Up Operation. A powerful battery back-up system keeps you connected when the power goes out. Keep a charged handset in the base unit and you can still make and receive calls with the other cordless handsets.
  • newegg TALKING CALLER ID Clarity even at extended range is a hallmark of Panasonic cordless phones. With Range Boost technology, a built-in antenna at the base unit, this model extends transmission range by up to 20% compared to previous generation phones - so you can keep talking as you keep walking.
  • newegg TONE EQUALIZER Everyone hears differently. To maximize clarity and even accommodate hearing loss, Panasonic added the Tone Equalizer to this model. This exclusive feature actually lets you control the bass, mid-range, or treble tones in a callers voice for maximum clarity.
  • newegg INTELLIGENT ECO MODE This feature automatically lowers the power consumption when you're using the handset close to the base unit, extending the available talk time. When less power is used by the handset to communicate with the base unit, battery life is prolonged which results in less frequent charging and optimal use.

Learn more about the Panasonic KX-TG6643B


Body Color


Frequency Band
1.9 GHz
Digital / Analog
Transmission Technology
DECT 6.0
Integrated Answering Machine
Expandable Handsets Supported
Multiline Operation Capability
1-line Operation
Conference Call Capability
Up to 4-Way (H/S-H/S-H/S-LINE)
Handset to Handset/Handset to Base
Caller ID
Talking Caller ID
Volume Control
Talk Volume(Handset): 4-step
Speakerphone Volume(Handset): 6-step
Ringer Control
6-step + OFF (Handset/Base)
Ring Tones
10 (5+5) (Tone+Melody)
Additional Features
60 Channels
Battery Life (Talk): 13 Hours
Battery Life (Standby): 11 days
Charge Time: 7 hours
Backlit Keypad
Hold/Soft Key
Belt Clip
Mute/Flash Buttons
Menu Operation
Silent Mode
Auto Talk

Phone Memory

Caller ID Memory
Phone Directory Memory

Answering System

Answering System Type


Display Features
1.8-inch Full Dot Mono 103 x 65 pixels
White LCD Backlit


Battery Type
NiMH Battery
Battery Size
2 x AAA batteries
Headset Jack
Placing / Mounting
Base Dimensions H x W x D (in.): 5.4 x 6.4 x 7.2
Handset Dimensions H x W x D (in): 6.8 x 1.9 x 1.3
Charger Dimensions H x W x D (in.): 1.7 x 2.9 x 3.1
Base Weight (lbs.): 0.82
Handset Weight (lbs.): 0.31
Charger Weight (lbs.): 0.11
Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
  • Read full details

Customer Reviews of the Panasonic KX-TG6643B

Do you own this product? Write a Review

ICON Loading...

Filter Results

  • VINAY B.
  • 1/29/2014 4:35:09 PM
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsJUNK PRODUCT

Pros: Nothing only that it's a panasonic cordless

Cons: 2 of the handset broke down immediately after 1 year. For 1 of them the speaker phone is dead. For the other headset the mic broke so the other person cannot hear you.

Did you find this review helpful? Yes No

  • PETER C.
  • 12/31/2012 8:18:09 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsnot happy

Pros: looks fine, sound is good, price good, features good

Cons: After about 3 months one of the base/chargers quit charging. I called Panasonic, and after 45 mins, they wanted me to be a tech for them and trouble shoot weather the problem is the cradle or the a-c adapter. They would not replace both. one cradle or one adapter.

0 out of 1 people found this review helpful. Did you? Yes No

  • Daemon B.
  • 8/18/2012 1:18:36 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggs

Pros: Nice feel in the hand
Nice set of features
Good price for 3 handsets

Cons: The UI on the screen is not that intuitive, even after several weeks of ownership it's still awkward.

Did you find this review helpful? Yes No

  • Anonymous
  • 4/4/2012 11:10:50 AM
  • Ownership: 1 month to 1 year

4 out of 5 eggs

Pros: This cordless answering system works perfect! The long range and sound quality allow me to talk on the phone in my backyard or to the front of my driveway, while I am picking up the mail.
Having a keypad on the base unit is perfect for when I can not find a handset. I am still able to use the speakerphone which has great sound and volume. There is a small display on the base, so I can see who is calling, even when the handset is misplaced.
The handsets themselves have a large display, the text is very easy to read. Navigating through features and options is simple. The phone has an internal phone book so I can store names and numbers and also has call block so I can also program it to block unwanted calls.
It even works when the goes out by the other handsets powering the base. Even though it is for only a few hours, this is a cool feature and helps in an emergency.

Cons: The answering machine volume and phone ringer, if it allowed you to increase the volume 1 more step would be great, but the loudest is fine.
The phone seems to have a lot of buttons on the base unit, making it seem complicated but it is not.

Other Thoughts: I would highly recommend this phone as it is full of great features, and has great sound and range that does not experience interference.

3 out of 3 people found this review helpful. Did you? Yes No

  • 2/20/2012 10:54:58 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

2 out of 5 eggsMediocre Phone

Pros: DECT 6.0 - won't interfere with WiFi
Good set of features

Cons: Little thought given to user-friendly design.

The primary use of my old phone was intercom. This phone supports intercom, but it takes 4 button presses to call another handset. It should take 2.

Since caller ID shows the entire number, including 1-XXX, you can't just call someone back from the CID list if they're in your area code. Panasonic was too brain-dead to let you set your own area code.

Generally cumbersome menus - lots of sub-menus, lots of confirmations, it takes too much button pressing to do anything.

One of the top useful features of my old phone was as a clock. This phone displays the time in small type with no backlighting.

3 out of 9 people found this review helpful. Did you? Yes No

ICON Loading...
Selected Items
Are you an E-Blast Insider? Subscribe Newegg e-Blast
Shop without retyping payment details. Secure shopping made faster.
Check out with PayPal.
If the Adobe Reader does not appear when you click on a link for a PDF file, you can download Adobe Reader from the Adobe web site.