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Hi all,
I'm trying to communicate with SIM900A via MCU but I got a problem of starting SIM900A by using pulse.
- Here is the schematic
- Here is my project
Some description:
- MCU communicates with SIM via USART2
- My PC only can debug MCU via USART1
- According to the schematic, PWRKEY of...
Hi all, I'm trying to read values inside CAMEL packet going through Intelligent Network via SS7. I use wireshark to capture data. There is something I'm not clear to understand. Here is my concern:
- MSC and gsmSCF exchange a lot of messages in order to set up a call (initialDP), Apply Charging...
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