Announcement apparatus for switching system

An announcement apparatus for a switching system, comprising:

• first control means for controlling the output of announcement voices with respect to the total voice service channels;
• first storage means for storing voice output address data therein, the voice output address data corresponding to voice output command data from said first control means;
• second control means responsive to an interrupt signal, for storing the voice output address data corresponding to the voice output command data from said first control means into said first storage means and outputting voice output state data;
• second storage means for transferring the voice output command data from said first control means to said second control means and transferring the voice output state data from said second control means to said first control means;
• fixed voice storage means for storing fixed announcement voice data therein and in parallel outputting one of the fixed announcement voice data stored in its location corresponding to an address data from said first storage means;
• edited voice storage means for storing edited announcement voice data therein and in parallel outputting one of the edited announcement voice data stored in its location corresponding to an address data from said first storage means;
• and
• memory controlling/voice processing means for outputting the interrupt signal to said second control means, reading the voice output address data from said first storage means, outputting the read voice output address data to said fixed voice storage means or said edited voice storage means, converting the parallel announcement voice data from said fixed voice storage means or said edited voice storage means into serial data and transferring the converted serial data to switching means of said switching system through a sub-highway.