Ready to Replace an Old Router?
Before you buy, compare this series with our newer 4000 Series ISRs, which provide network, compute, and built-in WAN services at up to 10 times the performance of previous-generation ISRs.
- Take advantage of our free network inventory service to see if you have obsolete or end-of-support equipment you may want to replace. Learn more about Cisco Active Advisor.
- See why now is the time to evolve your WAN. Download the latest white paper from ZK Research, then speed deployment with our design guide.Get started.
Integrated Services for Small and Medium-Sized Offices
The award-winning Cisco 1800 Series integrated services routers, ideal for small to medium-sized businesses and small enterprise branch offices, enable businesses to reduce costs by deploying a single, resilient system for fast, secure, delivery of multiple mission-critical business services, including:
- Data
- Security
- Unified Communications
- Wireless
The integrated services routing architecture of the Cisco 1800 Series offers features that provide the complete functionality and flexibility to deliver secure Internet and intranet access. All models within the series include:
- Built-in security
- Up to two 10/100 Mbps built-in routed ports
The fixed platform models (1801, 1802, 1803, 1811, 1812) include multiple WAN interface options, plus:
- Up to broadband speeds
- Eight 10/100 Mbps built-in switch ports with optional Power over Ethernet (PoE), for providing DC power to network devices such as IP phones
- Up to 50 VPN tunnels
- Support for wireless local-area network (LAN) standards 802.11a/b/g
The 1841 is a modular platform with a wide range of interface options, plus:
- Up to T1/E1speeds
- Up to four 10/100 Mbps built-in switch ports
- Up to 800 VPN tunnels
- Support for wireless local-area network (LAN) standards 802.11a/b/g
The 1861 is a modular platform built on a fixed base with a wide range of WAN interface options, plus:
- Integrated Cisco Unified Communications Manager Express or Cisco Unified Survivable Remote Site Telephony for call processing
- Cisco Unity Express, for voice messaging and automated attendant
- Integrated LAN switching with Power over Ethernet (PoE) expandable through Cisco Catalyst Switches
- Onboard voice ports for PSTN, PBX, and key system connections
Featured Content
Reduce Total Cost of Ownership (Flash) 
Cisco Integrated Services Routers deliver intelligent integration and lower ownership costs.
NTTPC Communications Inc. Offers Auto Configuration for SP Managed Services
(PDF - 209 KB) 
NTTPC Communications Inc. deploys Cisco Integrated Service Routers with IOS Embedded Event Manager to reduce overall cost of operations.
Product Support Services
Cisco's Services can help you increase operational efficiency, lower support costs, and improve availability risk management.
Related Versions and Product Literature
Learn about the similarities and differences of the models within this product series.
Models (6)
Cisco 1811 Integrated Services Router
Cisco 1803 Integrated Services Router
Cisco 1802 Integrated Services Router
Cisco 1801 Integrated Services Router
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