* [fix] checked for proper time ID
* [fix] missing change
* adding proper debugging possibility
* [fix] added more response validation
* [fix] validatio of the AT+CLCC response
* changed log level
* [fix] added explantation for the fix
* clean up AT command resposne validation methods
* [fix] for aborting call using long press
* added abort() in vApplicationStackOverflowHook
* code review fixes
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