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What I need to build:
I need a server capable of sending commands to 3 GSM modems (3 Separate Thai Networks). These commands will send top up credit to a customer's mobile phone.
You should be a programmer familiar with AT commands, GSM modems, USSD codes. I know this software exists as I currently use it with another provider.
I need also need a management interface where I can:
- Send Credit
- View Confirmations
- View Errors
- Track balance
- Send Recall commands
- History of all records
- API access / website communication
GSM modem reference guide: