Cisco Systems ASA 5500 Series Adaptive Security Appliance
The 5500 series of appliances supports SMB deployments (150 Mbps firewall throughput, 10,000 maximum firewall connections, 10 site-to-site and remote access VPN session and 256 MB of memory) to large data center implementations (10 Gbps firewall throughput, 2 million maximum firewall connections, 10,000 site-to-site and remote access VPN sessions and 12 GB of memory).
Firewall protection features identity-based access control and denial-of-service attack protection. Content management features include URL filtering, antiphishing, antispam, antivirus, antispyware and content filtering.
The unified communications protection can inspect and apply policy to popular voice protocols such as SIP, H.323, MGCP and SCCP, and protects against call eavesdropping, user impersonation, toll fraud and denial of service.