Reputation: 41
Is there a way to receive SMS messages sent to a GSM module (like sim800) as soon as the module boots up?
Usually if the SMS is sent while the receiving module is off, and then boots up the SMS messages take tens of minutes to arrive. However if the module is turned on, the messages arrive almost immediately.
Is there a way to signal the network that we are now connected and request all SMS messages?
I have tried network deregistration/registration (AT+COPS=2 AT+COPS=0) with no results
Upvotes: 1
Views: 1598
Reputation: 48087
Not having a lot of experience on this module, I believe this is rather a question about triggering the network provider to send SMS sooner (e.g. as soon as you're registered). This might depend on the network provider you're connecting to.
With a standard phone I've made the experience that triggering some network activity (e.g. calling someone or sending an SMS myself) seems to flush any SMS queues that they have waiting for me. You might try sending an SMS as soon as you're up
Upvotes: 0