Atlanta Systems Pvt.Ltd. Offers GSM Auto Router. Atlanta Systems Pvt.Ltd. Is an ISO 9001 awarded company. GSM Auto Router is suitable for conversion of GSM network into simulated PSTN network. GSM Auto Router has the following features: Built in Caller ID Remote Programming SIM unlock via SMS External/ internal battery recharging circuit Security lock-Network / SIM / BTS Lock etc. Programmable Toll-free codes & Call Tariffs High gain antenna options
