Cisco 2801 Integrated Services Router Key Features of the Cisco 2801 Integrated Services Router:Mid/High-Density, High Performance Services Security: On-board encryption, up to 800 VPN tunnels (AIM); IOS FW, NAC, IPS, or Content SecurityVoice: Mid/High-density analog/digital voice with IP Telephony, Voice Mail; CallManager Express or Survivable Remote Site Telephony support for up to 24 IP ...