Cisco 2911 Integrated Services Router

    3 integrated 10/100/1000 Ethernet ports (RJ-45 only)
    1 service module slot
    4 enhanced high-speed WAN interface card slots
    2 onboard digital signal processor (DSP) slots
    1 Internal Service Module slot for application services
    Fully integrated power distribution to modules supporting 802.3af Power over Ethernet (PoE) and Cisco Enhanced PoE
    Security
        Embedded hardware-accelerated VPN encryption for secure connectivity and collaborative communications Integrated threat control using Cisco IOS Firewall, Cisco IOS Zone-Based Firewall, Cisco IOS IPS, and Cisco IOS Content Filtering
        Identity management using authentication, authorization, and accounting (AAA) and public key infrastructure
    Voice
        High-density-packet voice DSP module, optimized for voice and video support
        Standards-certified VoiceXML browser services
        Cisco Unified Border Element capabilities
        Cisco Unity Express voicemail support
        Support for Cisco Communications Manager Express and Survivable Remote Site Telephony