• Cable carriers that want to offer cable telephony
• "Greenfield" competitive local exchange carriers (CLECs)
• Resellers moving to facilities-based services
• Facilities-based CLECs
• Fixed wireless operators that bypass the wireline telecommunications infrastructure
• Internet service providers (ISPs) and Metro Ethernet providers that want to add voice applications
• Interexchange carriers that are implementing transit voice over IP (VoIP)
• Designed using industry-standard protocols for all public-switched-telephone-network (PSTN) interfaces
• Designed to be implemented by service providers with or without central offices
• Interoperable with the PSTN for both local LECs and interexchange carriers (IXCs)
• Interoperable with several feature servers and flexible enough to include the customer's choice of feature server
• Scalable in both software and hardware to accommodate customer growth and performance requirements
• Impressive cost savings with the highest density and lowest cost per port
• Easy migration of traditional voice services to packet networks with carrier-grade reliability
• An open platform and flexible architecture
• Easy deployment of innovative voice services
• The ability to take advantage of investments in a packet network
• Scalability to millions of subscribers