Does the telephone adapter work on digital or ISDN lines?
The telephone adapter requires a plain analog telephone line (POTS or PSTN). Many telephone companies, however, also provide an analog interface to customers with ISDN lines, through what is called a Terminal Adapter. If you have a terminal adapter, you can use the Phlink Telephone Adapter on your ISDN line by connecting it to its analog port. Similarly, digital phone systems usually have analog ports for connecting analog fax machines or regular phones: Phlink’s adapter will work when connected to that port.
