 0 - OK
 1 - CONNECT
 2 - RING
 3 - NO CARRIER
 4 - ERROR
 5 - CONNECT 1200
 6 - NO DIALTONE
 7 - BUSY
 8 - NO ANSWER
10 - CONNECT 2400
11 - CONNECT 4800
12 - CONNECT 9600
13 - CONNECT 9600T (trellis)
14 - CONNECT 300/REL (MNP)
15 - CONNECT 1200/REL (MNP)
16 - CONNECT 2400/REL (MNP)
17 - CONNECT 4800/REL (MNP)
18 - CONNECT 9600/REL (MNP)
19 - CONNECT 9600T/REL (trellis+MNP)
20 - CONNECT 300/REL COMPRESSED (MNP5)
21 - CONNECT 1200/REL COMPRESSED (MNP5)
22 - CONNECT 2400/REL COMPRESSED (MNP5)
23 - CONNECT 4800/REL COMPRESSED (MNP5)
24 - CONNECT 9600/REL COMPRESSED (MNP5)
25 - CONNECT 9600T/REL COMPRESSED (trellis and mnp5)

