What are the advantages of an ISDN telephone?
Having never seen one I’m not exactly sure. I suppose with an ISDN telephone digital-to-analog conversion takes place in the telephone itself, not the TA. Also there’s a display for Caller ID and real-time billing. And if the caller is using an ISDN telephone, sub-addresses can be used to call specific ISDN devices at the destination site, eliminating the need for additional telephone numbers. ISDN telephones are probably more useful in office PBX applications.
