Cisco ISR4431-V/K9 Voice Router

Cisco ISR4431-V/K9 is a high-performance Voice Integrated Services Router, part of the Cisco 4000 Series, built for enterprise-grade voice, video, and unified communications (UC).

Preloaded with the UC (Voice) license, it supports SIP trunking, CUBE (Cisco Unified Border Element), SRST, and VoIP gateway functionality.

With a base throughput of 1 Gbps (expandable to 2 Gbps), 2 NIM slots, 1 SM slot, and 3 Gigabit Ethernet ports, this router is ideal for voice-enabled enterprise branches and data + UC convergence.

Available through RebuyIT for Rent or Sale across India, it comes with a 1-Year Hardware Warranty and the original Cisco power adaptor.

Ideal For Cisco ISR4431-V/K9

• Enterprise UC and VoIP networks
• SIP trunk deployments with CUBE
• Voice survivability (SRST) for branches
• TDM or IP-based voice connectivity
• Short-term UC infrastructure rentals

Why RebuyIT for Cisco ISR4431-V/K9

• 100% tested Cisco ISR4431-V/K9 units
• Delivered with Cisco original adaptor
• Rent or Buy across all major cities in India
• 1-Year hardware replacement warranty
• Expert support for configuration & deployment

FAQ – Cisco ISR4431-V/K9

Q1: What voice features are included in the UC license?

A: The UC license enables CUBE, SRST, SIP/MGCP/H.323 protocols, and TDM voice integration via NIM modules.

Q2: Is it SIP-trunk ready?

A: Yes. With CUBE enabled, it supports SIP trunking and SIP-to-SIP call routing.

Q3: Can this router act as a voice gateway for IP PBXs?

A: Absolutely. It's designed for VoIP and analog/digital PSTN connectivity.

Q4: Is this router available for temporary UC setups?

A: Yes. RebuyIT provides short-term and long-term rentals based on your need.

Q5: What accessories are included?

A: The router ships with the Cisco original power adaptor and optional rackmount kit (on request).