VOIP with 7 telephone numbers, but only 1 physical line ?
After moving within the city, I got 3 more numbers from my provider additionally to my 4 numbers. I used one analog telephone with cable and a DECT phone, both worked well until some months ago with 3 registered numbers. The DECT crashed and so I have only the one with cable which still worked until 10 days ago. But suddenly it only rang once and then it was dead. If someone calls my number, he only hears the buisy signal. The system protocol showed an error one day later for 2 other of my 7 numbers that these couldn't be registered: "VOIP - Information account[...] registration error"
So I deleted those 2 numbers, because I don't use them since about one year. I got some information from the TP-Link-Support via e-Mail, but the problem is not solved.
I set DECT inactive and activated NAT with ALG-SIP hoping this would work. The errors disappeared. Internet and WLAN are still working well. The callbox ist still activated, but doesn't work any longer. I can see the numbers of incoming calls and some of these are recognized from the phone book of the router. Since yesterday the phone LED is off, and I don't know why. I tried both connections phone 1 and phone 2 and another analog phone, but unsuccessfully.
Now I don't know what to do.
