The solution to my problem, Internet disconnections for incoming calls

This NT solved an annoying problem for me, namely the constant interruptions of Internet connection for incoming calls via ISDN. The problem was probably homemade, as it feeds I moved from the connection point of the Telekom in the apartment a simple 8-pin telephone cable to the Fritz box into another room to ship, then use but unfortunately the same cable to the ISDN signals from the S0 bus of Fritz box to move back into the phone jack to feed from there in the ISDN network of the apartment.

Although this worked, but it came from and when you receive phone calls via ISDN terminations of Internet connection, the Fritz box flew out. Although the phone call it was not affected, but it is very annoying when you just upload a large file and the download is interrupted, just because someone calls straight.

The Sphairon NT has mitigated this problem decisively, I had to replace him only against the old telecom NT. Now it depends only on every 20th to 30th call to disturbances of the Internet connection, the problem is virtually non-existent. Very good, full 5 stars!