DuPhone consists of hardware device and software program.
After connection of DuPhone between a telephone and a computer as shown below, please install software program (CD).
   
 
   
 
This button is for phone call. This button always should be pushed except when using ¨ÕPhone mode.
This is for connected phone by using Internet Phone(PC to Phone) terminal (speaker & MIC.), also it is possible to use for recording voice message.
connect to sound card's speaker out jack and MIC. Jack by audio cable.
connect to handset.