Cisco ISR4351-V/K9 Voice Router

Cisco ISR4351-V/K9 is a Voice-enabled Integrated Services Router from the Cisco 4000 Series, designed to deliver enterprise-grade voice, video, and collaboration services.

It includes the UC (Unified Communications) license for voice applications such as SIP trunking, CUBE, SRST, and VoIP gateway functionality.

This router comes with 3 Gigabit Ethernet ports, 2 NIM slots, 2 SM slots, and 200 Mbps base throughput, upgradeable to 400 Mbps, making it ideal for medium to large branch deployments requiring scalable, secure, and modular voice infrastructure.

Available for Rent or Sale across India via RebuyIT, the router is bundled with the original Cisco power adaptor and backed by a 1-Year Replacement Warranty.

Ideal For Cisco ISR4351-V/K9

• Unified Communications (UC) deployments
• SIP trunking and CUBE edge routing
• Voice gateways for enterprise branches
• SRST survivability for remote locations
• Temporary VoIP infrastructure via rental

Why RebuyIT for Cisco ISR4351-V/K9

• 100% tested Cisco routers
• Delivered with original Cisco adaptor
• Available for Rent or Buy across India
• 1-Year Replacement Warranty
• Fast delivery, expert advice, and configuration support

FAQ – Cisco ISR4351-V/K9

Q1: What’s included in the V (Voice) license?

A: The UC license supports CUBE, SRST, VoIP, SIP/MGCP/H.323, and voice module integration for analog/digital trunks.

Q2: Can I connect analog phones and PSTN lines?

A: Yes, using FXO/FXS/E1/T1 modules via NIM slots.

Q3: Is this model SIP-trunk compatible?

A: Absolutely. It supports SIP trunking via Cisco Unified Border Element (CUBE).

Q4: Is this router available on rent for temporary UC projects?

A: Yes. RebuyIT offers flexible rental terms for both short and long durations.

Q5: Can I use this as a backup voice gateway for main offices?

A: Yes. With SRST, it provides voice survivability during WAN outages.