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The signal quality is 31. I'm able to use voice call and SMS function.
**broken link removed** Module/ProductDetail.aspx?id=770
I bought the SIM900 module about a week ago.
The information on the SIM900 web site said the MMS function has available in July 2010. Is there anyway to check the...
I confirm that it's the power supply problem. I had same problem before. I've solved this problem by using 5.2A Li-ion battery instead of regulated power supply (30A @5V). After replaced the power source, my SIM900 module runs steadily and there's no huge voltage drop anymore.
There's an...
Hi all,
I've purchased SIM900-TE-C for MMS application. The SIM900 runs commands in "SIM900_AT_Command Manual V1.03" properly. But when I tried the MMS commands (SIM900_MMS_AT Command Manual V1.00), I always got "ERROR" result. The following is my information.
Country: Thailand
Mobile...
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