The Cisco IOS 15.2M&T has been retired and is no longer supported.
End-of-Sale Date: 2015-01-27
End-of-Support Date: 2020-01-31
Cisco's End-of-Life Policy
You can view a listing of available Networking Software (IOS & NX-OS) offerings that best meet your specific needs
If you want support information for the Cisco IOS 15.2M&T documentation, it may be available through Cisco.com Search or in the Cisco Community