CCV InSync System Manual page 23

Information about APN
The current location is described by the Location Area Identity (LAI = MCC + MNC + LAC), where the Mobile
Country Code (MCC) corresponds to the national prefix. The national prefix can be used to differentiate between
national and international locations.
When international roaming is activated, the national prefix is not evaluated.
CCV InSync System Manual Rev.03 04/2019 PA91P003 | Page 23