     7   6   5   4   3   2   1   0   7   6   5   4   3   2   1   0   7   6   5   4   3   2   1   0   7   6   5   4   3   2   1   0
   +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
00 | Hold time in sec [1-90]       | Remote listen in sec [10-120] | Active wait, 5ms [120-600]    | Active resent count [1-10]    |
   +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
04 | Pre-send count [4-15]         | Kill enc. enabled             | Active enc. enabled           | Check enc. enabled            |
   +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
08 | Kill dec. enabled             | Active dec. enabled           | Check dec. enabled            | SMS format                    |
   +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
0c | Voice head count [0-20]       | 0   0   0   0 |RMD|RME|CAD|CAE| Unused set 0x0000                                             |
   +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+

Where:
  - SMS format: 0 = Compressed IP, 1 = Defined Data, 2 = IP Data
  - CAD: Call alter decoding
  - CAE: Call alter encoding
  - RME: Remote monitor encoding
  - RME: Remote monitor decoding

