Our scm50-sim cards management device provides control over all the sim cards, especially suitable for companies that are managing higher amount of gsm terminals (sim cards). Itf¼s the best solution for replacing physical sim cards changing on terminals and secures storage of all sim cards. Product features: 1. Totally control of all your sim cards from your office. 2. Manage and control the outgoing time of each sim card from 000~999 minutes. 3. Counter unit: second, minute or call 4. Timer ending: continue or finish the call 5.4 digits display 6. Automatically switch the sim card. 7. Storage capacity: 1~5 modules and max 50 sim cards. 8. Scm50 works in conjunction with neos 3000a series to provide access to sim cards