ISDNphone makes your PC ready for computer-telephony! You can now make phone calls from your PC using your ISDN-adapter. The speech is processed either by the built-in soundcard or - for professional quality - by special DSP-ISDN-adapters.
Other features include call monitor, sending soundfiles, recording voice-calls, managing call forwarding and call deflection. Further includes speed dial menu, number history, phonebook and journal.