The test brought it to light: the entire basement (concrete) wonderful reception, and great in floor! The garden was covered - so for our needs all the best! Regarding the sound quality I can not say much because I have no comparison to top products. But everything was always to be understood well, I did not notice any distortion, no dropouts, etc.
We bought the part due to the radiation free (except during the call). We had already looked for something like 3 years ago, but unfortunately without success - the greater was our joy, finally a corresponding telephone (two hand parts, even if the hand parts * somewhere * are really low radiation) to have found.
What's a pity: you can see the ringer melody and volume does not adjust for each MSN, but only once per hand part for external calls. We would have liked when business calls a different tune than for private calls (depending on the called MSN). Well, that's too bad. The ringer volume of the hand parts is not excessively loud. However, that can also be a security issue, as the speaker for the ring tone is the same, to keep to your ear when making calls, and an incoming call while the phone just keeps his ear, would end damage hearing if you the volume could adjust louder ...
We also have a centrally-positioned corded phone that is so loud that you can hear it all over the house. Here also the ringer melodies for each MSN are different. Therefore, it does not bother us that the ringer hand parts is rather quiet, and the non-adjustable melody for each MSN, we can also get over. Finally, we hear the corded phone in the home!
I am torn between 4 stars and 5 stars, but as a product that is finally * really * minimized so rare to find the radiations, outweigh the benefits for me, even if it is in the functionality a little more room for Improvements are.
I have checked whether you can install a new firmware, but unfortunately found nothing. If you are interested, but can advance to download the manual as a PDF at swissvoice.net. This gives information what the unit really can.
CONCLUSION: Anyone who DECT radiation faces skepticism should look at this device!
