The Panasonic KX-TG7643M can connect via Bluetooth with up to two cell phone lines to make and receive calls and can sync up to 600 names and numbers in its memory. Hundreds of users weigh in with reviews, praising the phone's ease of use, answering machine features and competent speakerphone. The few complaints involve the lack of speed dial and lesser sound quality and reception when using the cell-phone line feature.
A solid speakerphone but occasional sound quality and compatibility issues. Owners say the Panasonic KX-TG7643M phone system is extremely easy to use and rave about the cell phone link. The keypads -- which are on both the handset and the base -- are large and well-lit, and the speakerphone function works well. The few complaints revolve around the lack of speed dial, occasional static or dropped calls and incompatibility with some mobile phones, including the iPhone 5. The phone operates on six AAA batteries. Its base unit will run off stored battery power in the handsets if there is a power outage -- a helpful feature for cordless phones, which are usually power-dependent.
Lightweight, non-slip handset.The handset has a non-slip design, which one reviewer says has a solid grip that keeps the phone from sliding off furniture when it's not cradled in the base. Some critics express concern that the lightweight handset could easily break, but no user reports this happening. Others note that the lightweight design is easy to hold, while a handful complain that their headsets died.
Users laud cell phone link. The Panasonic KX-TG7643M cordless phone offers a rare feature: the ability to make and receive calls for up to two cellular phone lines, in addition to a landline. Reviewers and owners repeatedly cite this feature as one of the best reasons to buy the KX-TG7643M. (The cell phone in question must be in the house and have Bluetooth wireless capabilities.) The cell phone's directory is also transferable into the cordless phone system database. In all Panasonic series, the model number indicates the number of handsets -- so when choosing a model keep in mind that the Panasonic KX-TG7643M has three handsets, the identical TG7644M has four, the TG7645M has five, and so on. If you know you want extra handsets, it is generally less expensive to buy them as part of the base unit package.
Review Credibility: Very Good More than 600 people review the Panasonic KX-TG7643M and its siblings, awarding it an average of 4.5 out of 5 stars. Owners like the Link to Cell feature, which copies phone book contacts from cell phone to cordless and allows the phone to answer and make calls on either a cell phone connection or the landline, though some say the reception isn't very good. Users also like that the TG7643M system can be powered by battery during a power outage. Retrieving voice mail from handsets and pairing a cell phone is easy, users say, and voice quality and reception are adequate.
Review: Panasonic KX-TG7643M, Contributors to Amazon.com, As of November 2012
Review Credibility: Very Good Over 120 users give the Panasonic KX-TG7643M an average of 4.5 stars out of 5. Reviews are generally very positive, praising the system for sound quality, signal, ease of setup, features and reception. Users like the Link to Cell feature, though many say the reception quality drops off when the cell phone connection is used.
Review: Panasonic KX-TG7643M, Contributors to Staples.com, As of November 2012
Review Credibility: Very Good About 120 reviewers collected from a variety of smaller sites award an average of 92 out of 100 stars to the Panasonic KX-TG7643M, with only six reviews lower than 4 stars. Users praise the clear, easy-to-read display, the reception and the convenience of the Link to Cell feature. They find the handset comfortable and the speakerphone easy to use.
Review: Panasonic KX-TG7643M Cordless Phone, Contributors to Nextag.com, As of November 2012
Review Credibility: Good Seventy-five BestBuy.com customers review the Panasonic KX-TG7644M, the twin of the KX-TG7643M with one additional handset, awarding an average of 4.6 out of 5 stars. Over 90 percent say they would recommend the phone to a friend. Reviewers praise its ease of use, saying it has a good speakerphone and a comfortable handset. Some reviewers are unhappy with the phone's substitution of an internal phone book for speed dial. Other complaints center around sound quality when using the cell phone line.
Review: Panasonic - DECT 6.0 Plus Expandable Cordless Phone System, Contributors to BestBuy.com, As of November 2012
Review Credibility: Good This undated summary review gives the Panasonic KX-TG7644M top billing among cordless phones and rates it 8.6 out of 10 based largely on its features. (The TG7644M is identical to the KX-TG7643M with one additional handset.) The summary review calls the talk time "generous" and commends the Bluetooth feature, calling the KX-TG7644M "the most well-rounded cordless phone."
Review: Panasonic KX-TG7644M, Editors of TopTenReviews.com, As of November 2012