Cisco 3900 Series

Cisco 3900 Series Integrated Services Routers (ISR) are designed to meet the application demands of today's medium-to-large branches and to evolve to cloud-based services. They deliver virtualized applications and highly secure collaboration through the widest array of WAN connectivity at high performance that offers concurrent services at up to 375 Mbps.


Services-Rich Router for Medium-Sized Branch.

  • 3 RU units with up to 4 GE ports with 2 SFP ports
  • UCS-E service module that can support Cisco and third-party apps, VMware ESXi, and MS hypervisor
  • Up to 4 service modules, 1 integrated service module (ISM)
  • Up to 98 LAN switch ports, 4 Enhanced High-Speed WAN Interface Card (EHWIC) slots
  • Ability to add a second integrated power supply
  • Security
    • Embedded hardware-accelerated VPN encryption and Cisco Cloud Web Security
    • Integrated threat control using Cisco IOS Firewall and Cisco IOS IPS
  • Unified Communications
    • 3 or 4 on-board digital-signal-processor (DSP) slots optimized for voice and video
    • Cisco Unified Border Element capabilities for up to 2500 sessions
    • Support for Cisco Unified Communications Manager Express, Cisco Unified Survivable Remote Site Telephony, and Cisco Unified Enhanced Survivable Remote Site Telephony (E-SRST)