These filters divide the signals on the telephone line between the high-pitched computer modem sounds and the lower pitched human voices and hence clearer voice. Installation: Typical installation ...

(1) (Voice Over IP modem) A device that converts Internet-based voice service from the cable or telephone company to the user's telephones. Officially called an analog telephone adapter.

while the DSL gateway includes a DSL modem and telephone connector. Both devices also include a router and an Ethernet switch to connect (typically four) computers by wire. A "wireless gateway" is ...

In the IP modem system structure, a pair of TAC Xenta 911 devices, with some kind of TCP/IP network in between, replaces telephone modems.