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Cisco IOS Software Release 12.3(11)T

NOTE: This product is no longer being sold and might not be supported. View the End-of-Life Notice to learn:
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  • What replacement products are available
  • Information about product support

The Cisco IOS® Software Release 12.3T family drives business productivity by delivering Security, Voice, and Wireless innovations to Enterprise, Access, and Service Provider Aggregation customers. The Release 12.3T family will be issued as a series of individual releases, each of which will create significant advances in business productivity and will include hundreds of new business-critical features, powerful new hardware support, and ongoing quality improvements. Cisco will ultimately consolidate all of these individual 12.3T releases to form the next major release.

Release 12.3T and the new Cisco Integrated Services Routers represent the first software / hardware system to deliver secure, wire-speed data, voice, video, and security services. Speeding application deployment and reducing operating complexity, this new system lowers the total cost of ownership for customers. An update to Release 12.3(8)T supports the Cisco 2800 and 1800 Series Routers, while Release 12.3(11)T supports the Cisco 3800 Series Router. Customers can leverage these releases to deploy the right router for every office, while maintaining a self-defending network and using advanced network routing capabilities to deliver an unparalleled service portfolio.

In addition to supporting the Cisco Integrated Services Routers, Release 12.3(11)T extends the benefits of Cisco IOS High Availability to small- and medium-sized businesses and branch offices.

Featured Content

Cisco IOS Software Release 12.3T Powers Cisco Integrated Services Routers (PDF - 3.5 MB) Adobe PDF file
Jun/2004

Release 12.3T Customer Q&A
Jun/2004

Cisco IOS Software Release 12.3T New Features and Hardware Support, Product Bulletin No. 2215
Jun/2004

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