In my case I found the periodically location update timer is 174 min. (2.9 H) this in BSS conifguration side for all our BSCs , but as you know the BScs are covered diffeent area , is that normal , boz as i know this timer deponds on the area type ,,,
from the other side from the core network side we have the vlr after 24H will delate the subs (purge sub.) , the absent subscriber error is very high in Sending route information
and MT error
could you help me