Description
The Cisco CISCO2821-SRSTK9 is a robust and reliable Integrated Services Router designed for medium-sized businesses and branch offices requiring secure, high-performance connectivity and voice capabilities. Housed in a 2RU rack-mountable chassis, it supports modular expansion with two integrated 10/100 Ethernet ports, four high-speed WAN interface card (HWIC) slots, and support for advanced voice and security features. This model includes the Survivable Remote Site Telephony (SRST) feature, enabling continued voice service during WAN outages, making it ideal for businesses that cannot afford communication downtime. Its modular design allows for flexible configuration and scalability to meet evolving network demands.
Powered by a 266 MHz processor and upgradable memory options (up to 512MB DRAM and 128MB Flash), the CISCO2821-SRSTK9 delivers dependable routing performance for data, voice, and video applications. It supports a wide range of Cisco IOS Software features, including firewall protection, intrusion prevention, VPN support, and quality of service (QoS) for voice traffic prioritization. The unit is compatible with various network modules and interface cards, such as T1/E1, serial, and voice interface cards, providing versatility for legacy and modern network environments. As a used hardware option, it offers a cost-effective solution for businesses seeking enterprise-grade functionality without the premium price of new equipment.