VLR VLR GSM, HLR . VLR. (. " SSS", 2, " ", "").
3.32 .
3.3.5.2 / IMSI
GSM (, , IMSI) , VLR IMSI.
:
1. MSC, VLR IMSI.
2. MS MSC, , , IMSI VLR. IMSI . VLR MS MSC.
3. , , MTC (HLR MSRN VLR).
, , MSRN GSM MTC, "IMSI ", , , . , - , . VLR "IMSI ", MSRN MTC, ().
. 3.33 / IMSI.
3.33 / IMSI.
: , MTC SMS MT, VLR , MS PLMN , "IMSI ". .
(. " SSS", 2, " ", "/ IMSI").