Cisco C2801-10UC-VSEC/K9 2801 Integrated Services Router Voice Security Bundle

Cisco C2801-10UC-VSEC/K9 2801 Integrated Services Router Voice Security Bundle is an enterprise Cisco router, from the ISR G1 family.

What this platform is for. The ISR G1 is a branch-office router from Cisco’s first Integrated Services generation, built to put routing, voice, security and switching in one box at a remote site instead of four separate devices. Knowing the family’s intended role is usually more useful than the part number when you are working out whether something fits: a chassis built for one job will do another, but rarely well, and the cost of that mismatch tends to show up as throughput or feature limits rather than as an outright failure.

This listing carries no specification text, which is why this page describes the family rather than the exact configuration. Routers of the same model were frequently sold in several configurations differing in memory, interface cards, power supply and licensing, and those differences matter more than the model name does. We can pull the exact specification for this part number from the vendor’s own database before you order.

Three questions worth answering before any router purchase, whatever the model. What the throughput requirement actually is with your feature set enabled, rather than the datasheet figure measured without it. Whether the features you need are licensed as well as present, since on most platforms security and performance are separate entitlements. And how many slots or ports you will need in three years, because adding capacity is cheap and replacing a chassis is not.

Where this sits: this is the first-generation ISR, two generations behind what Cisco sells now. The 1800, 2800 and 3800 series were replaced by the ISR G2, which has itself since been replaced by the ISR 4000. Equipment of this age is bought to keep something working, not to build anything new, and that is a perfectly reasonable thing to want.

The honest caution is not the age but the exposure. A router this old runs software that stopped receiving security fixes a long time ago, so where one is doing anything internet-facing it is worth asking whether it should be. Tell us what it is doing and we will tell you whether a current equivalent is cheaper than you expect.

Tell us what the router has to do, the circuits it has to terminate, the throughput you are designing to and whether you need the security features licensed. We would rather size it from the requirement than from a part number, because the two commonest mistakes on a router purchase are buying throughput that turns out to need a licence and buying a chassis with no slots left.

Green Code Technologies is a supplier of Cisco, and we supply Huawei and Juniper networking alongside HPE, Dell, Samsung, Netgear, Ubiquiti and Asus. We would rather tell you a part is no longer supported, or that we need to check it, than take an order for something that will not do what you need.

The Cisco C2801-10UC-VSEC/K9 is an Integrated Services Router. It belongs to the Cisco 2800 series and is designed for branch offices and small-to-medium businesses.

This model is a voice and security bundle. It combines data, voice, security, and unified communications in a single platform.

The router includes PVDM2-32 (DSP module) and AIM-CUE (Cisco Unity Express). These components enable IP telephony and voicemail services. It also comes with 10-user CME/CUE licenses, making it suitable for small office voice deployments.

It features 2 × Fast Ethernet (10/100) ports for WAN/LAN connectivity. The router supports a wide range of WAN protocols, VPN technologies, and firewall security features.

The C2801 supports Advanced IP Services IOS, enabling routing, security (IPSec VPN, firewall), and QoS capabilities. It also includes hardware-based encryption acceleration for secure communications.

The platform offers high expandability with multiple slots:

• AIM (Advanced Integration Module)
• HWIC / WIC (WAN Interface Cards)
• VIC (Voice Interface Cards)
• PVDM (DSP modules)

This router is commonly used for branch office connectivity, VoIP deployments, and secure WAN access.

⚠️ Note: The Cisco 2800 series is End-of-Life (EOL). It is mainly available in refurbished or secondary markets today.

Key Features:

• Integrated voice, data, and security services
• Includes PVDM2-32 DSP + AIM-CUE module
• Supports 10-user Cisco CME/CUE licenses
• 2 × Fast Ethernet ports (10/100)
• Advanced IP Services IOS with VPN and firewall
• Multiple expansion slots for flexibility