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I'm planning to buy SIM900A GSM/GPRS Shield for Arduino Uno. I wanted to create an application that sends SMS to a list of mobile numbers, let's say 1000 mobile numbers. Is it applicable to use SIM900A GSM/GPRS shield for bulk messaging? Did anyone of you tested the sms transaction sent per second/minute using this shield? I accept any suggestion that would be helpful. Thanks.

  • Sound like you need an online sms gateway (.e.g. message bird) . – Gerben Feb 9 '16 at 15:08
  • Yep, but this is only for my testing purposes for a few mobile numbers. Thanks – Joenel de Asis Feb 9 '16 at 15:13
  • "Did anyone of you tested the sms transaction sent per second/minute using this shield?" This depends on the service provider, the radio network, more than the SIM900A. – Mikael Patel Feb 9 '16 at 20:28

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