N200 for TCH DROP NOKIA

Hi there,

Please suggest better value set to reduce sdcch drops and TCH drops

N200 is not modifiable. It is a fixed value (as defined on 3GPP TS 44.006_V8), and it depends on the type of used channel:
The N200 value for layer 2 link establishment and release is 5.

In the state “timer recovery”, N200 is set to as below,
5 for use on SACCH;
23 for use on SDCCH;
34 for use on FACCH/full rate; (Note:1)
29 for use on FACCH/half rate.
48 for use on E-FACCH/full rate;

Note 1 : All types of FACCH/Full rate except E-FACCH/F

For SAPIs other than 0 or 3, the value of N200 is 5.