Just to point out again, you don’t necessarily have to buy a special IP telephone for IP telephony.
You can also connect normal, inexpensive analogue telephones directly to the router, so it is also possible to give two separate numbers for the two router telephone connections.
I used the Aton Cl115 Duo for a few months and it worked great.
Since I am a technology freak, I bought the Rousseau IP telephone yesterday and put it into operation, mainly because there are already many customers who also use it and so I can also help solve problems there.
Installationen, Netzwerk, Internet, Computertechnik, OS Windows, Apple und Linux.