Two-line telephone controller

摘要: A computer-controlled communication board which includes a data access arrangement functions as an intermediary between multiple telephone lines, device such fax/modem/voice chipset, and standard handset. The has line select switch switchably connects one of the lines to via single transformer associated 2/4 converter. Off-hook switches are provided for each so that can cause selected go off-hook. Likewise, ring detectors detect those is ringing. Telephone handset may be connected any lines. configured unused appear "busy" incoming calls, or it in voice local mode used play out recording audio information.