The SIP2102V is an affordable stand-alone SIP audio preamplifier module designed for passive SIP intercom requests and RTP multicast. While it doesn't support active SIP intercom requests, it does an excellent job of decoding and playing audio content. SIP2102V can handle G.711a/u and G.722 audio decoding protocols, and is suitable for applications such as real-time paging, scheduled broadcasts, background music, and emergency broadcasts.