export enum Sim800CommandType {
  AT = 'AT',
  ATCPINSTATUS = 'AT+CPIN?',
  ATCPIN = 'AT+CPIN=',
  ATCNMI = 'AT+CNMI=',
  ATCMGF = 'AT+CMGF=',
  ATCMGS = 'AT+CMGS=',
  ATCMGR = 'AT+CMGR=',
  ATCMGL = 'AT+CMGL=',
  ATCMGDA = 'AT+CMGDA=',
  ATCMGD = 'AT+CMGD=',
  CREG = 'AT+CREG?',
}