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Send and Receive SMS (Short Message Service)

oldnick Oct 17, 2010 09:18 AM

Hello forum,

I am trying to Send and Receive SMS while the DataLogger CR1000 is connecting to the internet (callback use) via GSM/GPRS Modem.
Can I manage to do two connections (PPP&SMS) simultaneously??
I test it and I find that only one operation can be handled by the DataLoggerand the Wavecom Modem.

Please advice
Regards
Nikos

JDavis May 24, 2011 05:42 PM

That is a limitation of cellular modems. Sending and receiving SMS messages is done in command mode and cannot be done in PPP mode. If your service provider has an Email to SMS gateway, you can send and receive emails while in PPP mode instead.

PPPOpen and PPPClose can be used to enter and exit PPP mode.

Adding a second modem would allow you both types of connections simultaneously if critically important.

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