Tonmind IP PA System Lite is an audio broadcast software that converts multi audio input to SIP extension broadcasting and RTP Muliticast.  It can manage and control various PA System professionally. Efficient manageable audio system. Support RTP Multicast. Support SIP extensions. Support built-in bell ringing. Multi zones management. Multi kinds of audio streams. Flexible schedule configuration. Compatible with all windows music players. Provide all-in-one unified IP audio solutions. Manage and control various PA System excellently.