Hi all Maybe my question was incomplete
The IMSI structure has 15 digits: - the first 3 digits as country id - the 4th and 5th digit operator id - the 6th and 7th the home HLR of the terminal - the last 8 digits in conjunction whit the 6th and 7th digits are the MSIN We need to change the 6th and 7th because we have a second HLR on our network, we can make the changes on the SIM whit SIMs card readers, but we have a huge quantity of terminals on the market Thanks cidar
