AT commands to send and receive an SMS using a ZTE MF637U modem

I'm developing a small application in VB开发者_如何学JAVA6 to receive sms am using a ZTE MF637U modem,someone please help me with the AT commands to receive sms and also send? the normal AT commands are not working with this modem.

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This is a great guide.

Before I switched to SMS using internet gateways, using the guide i was was able to send (AT+CMGS) and receive sms (AT+CMGL) via a usb mobile modem from mscomm control and vb6

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GSM modems use a different command set than regular modems and they vary by manufacturer.

Try this link for some guidance.

http://gatling.ikk.sztaki.hu/~kissg/gsm/at+c.html

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Try finding documentation specific for your phone, it might need some specific commands.

Alternatively use some existing library to do the job, like libGammu, there seems to be success with several ZTE phones with Gammu (though your particular model is not listed).