User guide 2N® SIM Star User guide 2N® SIM Star Content: 1. Product Overview1.1 Overview1.2 Components and Associated Products1.3 Upgrade and Innovations1.4 New Features in Latest Version1.5 Terms and Symbols Used2. Description and Installation2.1 System Component Description2.2 Before You Start2.3 System Component Installation3. Configuration3.1 Web Interface3.2 Step-by-Step Basic Configuration3.3 Management3.4 Gateways Menu3.5 GSM Groups Menu3.6 GSM Menu3.7 SIM Boards Menu3.8 SIM Groups Menu3.9 SIM Menu3.10 IMEI Menu3.11 Rules Menu4. Function and Use4.1 SIM Card to GSM Module Assignment4.2 Hot Swap4.3 How to Link Module IMEI and SIM Card IMSI4.4 Prepaid SIM Card Credit Recharge4.5 Human Behaviour Functionality4.6 External API - SSS Uniclient Protocol4.7 Tray SW4.8 External Credit Check/Recharge Script5. Technical Parameters6. Supplementary Information6.1 Mikrotik RB750 Default Configuration6.2 Troubleshooting6.3 List of Abbreviations6.4 Regulations and Directives6.5 General Instructions and Cautions