The Cisco 3925 Integrated Services Router (ISR) delivers highly secure data, voice, video, and application services to small branch offices. Key features include:



- Modular Services Performance Engine (SPE) 100, which can be upgraded for even higher performance as next-generation WAN environments evolve

- 3 integrated 10/100/1000 Ethernet ports with 2 ports capable of RJ-45 or SFP connectivity

- 2 service module slots

- 4 Enhanced High-Speed WAN Interface Card (EHWIC) slots

- 4 onboard digital signal processor (DSP) slots

- 1 Internal Services Module slot

- Dual integrated power supplies

- Fully integrated power distribution to modules supporting 802.3af Power over Ethernet

- A universal IOS image that lets you deploy new IOS services quickly



Security



- Embedded hardware-accelerated VPN encryption for secure collaboration

- 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



Unified Communications



- High-density-packet voice DSP module, optimized for voice and video support

- Standards-certified VoiceXML browser services

- Cisco Unified Border Element capabilities for up to 800 sessions

- Cisco Unity Express voicemail support

- Support for Cisco Communications Manager Express and Survivable Remote Site Telephony