Logged Values

  "Asterisk-Acc-Code",          The account name of detail records
  "Asterisk-Src",
  "Asterisk-Dst",
  "Asterisk-Dst-Ctx",           The destination context
  "Asterisk-Clid",
  "Asterisk-Chan",              The channel
  "Asterisk-Dst-Chan",	        (if applicable)
  "Asterisk-Last-App",	        Last application run on the channel
  "Asterisk-Last-Data",         Argument to the last channel
  "Asterisk-Start-Time",
  "Asterisk-Answer-Time",
  "Asterisk-End-Time",
  "Asterisk-Duration",          Duration is the whole length that the entire
                                call lasted. ie. call rx'd to hangup
                                "end time" minus "start time"
  "Asterisk-Bill-Sec", 	        The duration that a call was up after other
                                end answered which will be <= to duration
                                "end time" minus "answer time"
  "Asterisk-Disposition",    	  ANSWERED, NO ANSWER, BUSY
  "Asterisk-AMA-Flags",       	DOCUMENTATION, BILL, IGNORE etc, specified on
                                a per channel basis like accountcode.
  "Asterisk-Unique-ID",         Unique call identifier
  "Asterisk-User-Field"	        User field set via SetCDRUserField