thanx for your reply.
by i sead that i am new in gsm.
please explain for me with detail.
actually you believe that this alarm fix with correct the Definitions between TC and A (or Abis)interface(software solution)?
or i have to fix it with check my hardware(TRX,COMBINER,…)?
meanwhile i had 7745 and 7743 alarm on my bts that have alarm 2993.
plaese explain me with details.