2N - VoiceBlue LiteFig. 11 – SIM Card Inserting ProcedureEach SIM card inserted in the gateway has a unique set ofparameters. Their values are bound to the card IMSI, remain storedin the gateway even if the SIM card has been removed and thusneed not be reset upon SIM card re-insertion.2.8. PIN Entering Disable (Optional)2N - VoiceBlue Lite is set at automatic PIN entering by default(1234). To disable the PIN use any mobile telephone in which youinsert the given SIM card. By disabling the PIN entering youinvalidate any other VoiceBlue Lite parameters or PIN stored inthe gateway memory. If you do not disable this function,VoiceBlue Lite will always ask for a PIN by LED signalling,which must be identical for all SIM cards inserted.2.9. Status IndicatorsThere is a panel with five LEDs on the gateway upper cover for aquick GSM gateway status detection (see Fig. 12). The PowerLED signals that the gateway as a whole is in operation. TheGSM 1 to GSM 4 LEDs indicate the status of the respective GSMmodules.17VoIPon www.voipon.co.uk sales@voipon.co.uk Tel: +44 (0)1245 808195 Fax: +44 (0)1245 808299