Matrix offers 2 products in the Intercom-Security range. Known for their reliable performance, these products are ideal for apartments, housing societies, townships, residential complexes, shopping complexes, etc. 16 Universal Slots 21-Party Conference 100% Non-Blocking CLIP (Number and Name Display) Malicious Call Tracing Conversation Recording Panic Switch Cabinet expansion using IP, E1 or E&M for cabinet expansion Back Ground Music on Speakerphone Security Extensions Voice prompts Central Hooter or RingerSecurity Station Monitor