disc-cause-ext number to string

[Igor Smitran]

I am having problems with one NAS, Cisco 3620. It keeps sending me
AVPairs that contain only number values, not string.
Example:
Cisco-AVPair = disc-cause-ext=1045
According to this:
http://www.cisco.com/en/US/docs/ios/internetwrk_solutions_guides/splob/guides/dial/aaasub/C262C5.html

1045 = Received Terminate

On that same radius i have few other Cisco NAS-es that send AVPairs with
string value.
Is there a way to translate this number to string value in a dictionary?
I am sorry if this subject was mentioned before. I've spent one hour
searching but no success, maybe my search keywords were wrong.
Any guidance would be appreciated.