Panasonic KX-TG8521

Panasonic provides a great overall package with its top model KX-TG8521 for 80 euro. Who here strikes, make no mistake.

  1. Panasonic KX-TG8521
  2. Data sheet
  3. Rating

Bit frumpy comes the Panasonic KX-TG8521. At least if one opts for the black version. White, the thing looks even fresher. But the veteran form has also proven benefits: the display measures 2 inches (5.08 cm) on the diagonal, which is pleasantly large.

The size and the resolution of the font are well chosen. In addition, you can enlarge the font size by pressing a key at any time if the glasses again not within easy reach. In the menu of the Panasonic KX-TG8521 six main entries are marked with icons – are well suited to the class of the device.

At the breakers, one might expect something more in this price range but, because the blue illuminated buttons of the Panasonic KX-TG8521 wiggle but noticeably – even though they have no reason to do so, they survive but hardly about the case.

The 5-way Navikey has something much game. This is like the slightly crackly battery cover not conducive to the best impression, but not really hurts in everyday life. After all, the keys are wavy and this pretty good to meet.

The handset has been pretty chubby, what isn’t so bad, because so the Panasonic KX-TG8521 you can comfortably between the shoulder and head clamp. Although every chiropractor this position will get glowing eyes, however, this kind of mobile part attitude is widespread. Panasonic makes it easier even through a rubber sheet on the back, thanks to which the phone can be even better pinch and does not slip.

Telephone number management

The handset keeps track of whopping 200 names and numbers, the customer can associate a digit key as a speed dial key nine phone numbers; long pressure on these the Panasonic KX-TG8521 dials the stored phone number, good which saves time.

The caller list informs about the last 50 incoming calls with date and time, unfortunately, Panasonic has refused unlike arch-rival Gigaset on an optical signalling. So, you must take always the handset on hand to see whether someone has rung up. Very good, however, is the ability to easily block unwanted caller numbers.

Also can be at night automatically turn off the ring tone on the Panasonic KX-TG8521 – a useful and practical feature that actually belongs in each DECT telephone.

Eco functions

The Panasonic KX-TG8521 has a lot to offer also in eco functions, but lags behind Gigaset: so the KX-TG8521 at the power consumption with only 0.7 watts in the connect– mix, the shop contents itself, stand by mode and phone calls – a class value.

To reduce radiation the user button on the handset can significantly lower the transmitting power of the base. This is although at the expense of the range, the eco mode can be disabled in critical situations with a further button but also just as quickly again.

Nevertheless, it is incomprehensible why Panasonic without leaving the field competition from Gigaset and setting for the full eco mode, which automatically reduces the power when not in use,.

Good answering machine

The answering machine of Panasonic KX-TG8521 remembers 40 minutes, that’s enough thickness; to get the proper sound and the ability to record conversations. Also remote access and the operation of base and handset are possible.

Thumbs up from the lab

Well, Panasonic has the stamina, especially in stand by mode. Here the handset remains well 426 hours on reception, over 17 days – is so frequent reloading. Also the talk time is fine.

In the rigorous Acoustic measurements, the Panasonic KX-TG8521 also showed no weakness in the sum. The interlocutors are clearly understanding also quiet noise and speech quality do not give rise to criticism.


A coherent overall package, which although not a bargain, but his money is worth 80 euro offers the Panasonic KX-TG8521.

Data sheet

Type of connection / caller ID analog /.
Display: Max digits of phone number 24
Number ringtones handset / base 20 / 1
Paging (handset search) / key lock /
Lighting display / keyboard /
Speakerphone on the handset / baby phone / headset connection / /
Bluetooth pairing with headset / PC / mobile / /
Firmware update possible / Outlook sync. with PC /
CAT-iq (vb) system
DECT encryption / senior-friendly / outdoor-ready / /
Caller list: memories / visual signalling 50 /.
Memory phonebook / phone numbers per contact 200 / 1
Phone book: Name, first name separately / characters per name / 16
VIP ring tone / picture CLIP /
Power supply & RADIATION
Battery type / standard batteries NiMh /.
Charging station separately from base station
Total system power consumption (mix) (watt) 0.7
Radiation reduction: Fully eco-fashion / eco mode /
Transmitting power of based on manually drosselbar
dynamic power of the handset
If color display: the number of colours / resolution (pixels) 65536 / 128 x 160
SMS / text input help /
Email client / RSS feeds /
Data retention when power failure / remote access /
Keyboard / display base /
Announcement / recording length messages 2:30 / 40:00
Operating time standby / …mit full eco mode (hh: mm) / (hh: mm) 17T 18:52:00 /.
Operating time conversation (hh: mm) 12:38:00
TMOS reception direction / direction (PKT / PKT) 2.8 / 3.3
Frequency response reception direction / direction (PKT / PKT) 6 / 9
Receiving loudness rating / sending loudness rating (dB / dB) 2,9 / – 2.1
Overall delay receiving direction / direction (ms / ms) 16.4 / 14.3
Idle channel noise receive / send (dBPa(A) / dBm0(P)) -63.7 / – 59.9
3QUEST – background noise Office direction (PKT) 3.6
TMOS reception direction / direction (PKT / PKT) 2.1 / 4.0
Frequency response reception direction / direction (PKT / PKT) 3 / 7
Receiving loudness rating / sending loudness rating) (dB / dB) 13.3 / 0.8
Overall delay receiving direction / direction (ms / ms) 17.5 / 15.0
Activation threshold in direction (dB) 73
3QUEST – background noise Office direction (PKT) 4.1



ENDURANCE 50 good (39)
Standby time / talk 25 / 25 25 / 14
EQUIPMENT up 175 well (138)
Basic functions 55 53
Comfort features 50 43
Phone number management 35 25
Power supply & radiation 20 14
Multimedia and messaging 10 3
Special functions 5 0
HANDLING maximum 175 good (142)
Menu / keyboard 70 / 20 54 / 17
Display / handling 25 / 25 20 / 23
Workmanship / operating instructions 20 / 10 20 / 6
Dimensions & weight 5 2
SOUND MAX 100 good (78)
Laboratory phone handset on the head received / send 40 / 30 29 / 26
Laboratory phone handset speakerphone received / send 15 / 15 10 / 13
CONNECT judgment Max 500 points 397 good
tested in issue: 01 / 11