Features:
*Backup reporting system at the failure of telephone line
*Utilized as primary reporting system if cable telephone network is unavailable
*CMS reporting with contact ID format
*Personal reporting with pre-recorded voice feedback
*SMS reporting (English/Chinese)
*Answering incoming call
*Real time telephone line detection
*Checking for GSM availability and antenna signal level
*GSM unavailable and antenna signal low reporting via telephone line
*External watchdog
*485 communication bus