Cisco Cisco IOS Software Release 15.0(1)M

deployment of hardware and software, providing a flexible technology foundation that can quickly adapt 
to evolving network requirements. The Cisco 3900 series integrated services routers offer embedded 
hardware encryption acceleration, voice- and video-capable DSP slots, optional firewall, intrusion 
prevention, call processing, voice mail, and application services. In addition, the platform supports the 
industry’s widest range of wired and wireless connectivity options such as T1/E1, T3/E3, xDSL, and 
Copper and Fiber GE.

For memory recommendations for the Cisco 3900 series integrated services routers in Cisco IOS 
Release 15.0M, see the 

.

Cisco IOS Release 15.0M supports the following Cisco 3900 series integrated services routers:

Cisco 3925

Cisco 3945

For detailed descriptions of the new hardware features, see the 

For additional information about supported hardware for this platform and release, go to the 
Cisco Feature Navigator home page at the following URL:

For supported modules on the Cisco 3900 series integrated service routers, see the following document:

For feature support in Cisco IOS Release 15.0M, see the 

This section contains the following sections with information that is specific to the Cisco 7000 series 
router:

For memory recommendations for the Cisco 7000 series routers in Cisco IOS Release 15.0M, see the 

The required memory for the Cisco 7200 series routers has been changed from 256 MB to 512 MB in 
Cisco IOS Release 15.0(1)M.