FrontlineSMS allows you to text message with large groups of people anywhere there is a mobile signal.
Share 'Haiti Help: GSM modem and SIM card issues'
Hey FLSMS community!I am in Haiti trying to help some folks build an SMS-based anti-trafficking network. We are using a Falcom Samba GSM modem which has never steered me wrong, and two diff SIM cards (Digicel & Voila) and I keep getting an error message that says "SIM card invalid: GSM network registration failed)."I noticed others had this issue but w diff modems. anyone have any ideas as to…
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