This SCHWAIGER® telephone adapter can be used to expand a TAE connector socket. The adapter expands an "F" telephone connection by 2 "N" extension connections, 1 "F" telephone connection and one "WE" RJ11 connection. This way, at least 1 phone, 2 additional devices such as fax or answering machine, and 1 other device equipped with an RJ11 western plug can be connected.