Abstract: Described is an apparatus for permitting installation of voice over internet protocol (VoIP) service at a subscriber premises. A VoIP adapter is provided that is configured to enable application of sealing current to an outside line while permitting use of analog equipment on a VoIP enable premises wiring system. The VoIP adapter includes a high-pass filter portion that permits the use of existing premises analog equipment.

Abstract: An apparatus and methodology for permitting subscriber installation of voice over internet protocol (VoIP) service at a subscriber premises. A VoIP adapter is provided that is configured for snap-in mounting in a subscriber premises network interface device (NID). The adapter includes an input plug connector and an output jack connector, as well as VoIP electronics, and is configured such that the VoIP electronics may be easily coupled in the subscriber incoming service line. Methods for subscriber installation of the adapter are also disclosed.