What are ICM features and parameters in GSM?

Hi All,
What are ICM features and parameters in GSM?

To check the interference level in idle mode.
Ericsson parameters are limit 1, 2, 3, 4.
Changing those you can define the interference level ranges.

For your info, if you get high ICMBAND value, it can be interference or even a HW issue.

KPI parameter to check for interference in 2g network:

Iband 3 , Iband 4-5