Cisco ISR4351-V/K9 Integrated Services Router

Product Description

The Cisco ISR4351-V/K9 is an Integrated Services Router (ISR) 4000 series UC Bundle, designed for enterprise branch offices and mid-sized deployments requiring integrated unified communications and routing. This model includes a PVDM4-64 digital signal processor module and a UC License, enabling voice and video services without additional hardware. The platform supports advanced WAN connectivity, security, and application optimization in a single modular chassis.

Technical Specifications

• Model / MPN: ISR4351-V/K9
• Bundle Contents: Cisco ISR 4351 UC Bundle, PVDM4-64, UC License
• Series: Cisco ISR 4000
• Form Factor: Rack-mountable modular router
• Voice Support: Integrated unified communications capability
• DSP Module: PVDM4-64 (64-channel packet voice/data module)
• Licensing: Includes UC License for call control and collaboration features

Design Features

• Modular chassis with slots for NIM (network interface module) and SM (service module) expansion
• Integrated PVDM4-64 for high-density voice processing without external DSP resources
• Unified communications license pre-activated, reducing deployment time
• Designed for concurrent routing, security, and voice traffic in a single device
• Supports high-availability configurations with redundant power and failover options

Application Area

The Cisco ISR4351-V/K9 is deployed in enterprise branch offices and regional hubs where voice, video, and data converge over a single WAN connection. It is suitable for organizations integrating IP telephony, unified communications, and secure WAN routing, including multi-site enterprises requiring centralized call control or distributed voice services. The router is also used in data center edges for managed router services and in service provider CPE environments.