3gppSgsnMccMnc holds the Mobile Country Code (MCC) and the Mobile Network Code (MNC) used by an operator. The value is downloaded from HSS in the user profile. The MCC consists of 3 digits and the MNC consists of two or three digits depending on the value of the MCC. 3GPP-SGSN-MCC-MNC AVP, code 18.
start=true;interim=true;stop=true;event=true
Each possible ACR record type must have the value true or false.