CIRPACK develops next generation telephony platforms for telecom service providers: Local Exchange (Class-5) and Transit (Class-4) switches with simultaneous native support for TDM, ATM and IP networks and protocols. CIRPACK products are available today and all of their announced features are field proven with real telco traffic. CIRPACK Class-5 Switches can also be enhanced with CIRPACK IPC, a carrier-grade IP Centrex application allowing to replace PBX and Key Systems at Small and Medium Businesses.