28 Status Registers & Result Codes
Register Dec. Function & Description Default
0, 2 Hang up.
1, 3 Fall back to an async connection.
4, 6 Attempt MNP mode. If MNP fails, hang up.
5, 7 Attempt MNP mode. If MNP fails, fallback to async
connection..
S37= Desired DCE speed (line speed). 000
0 Maximum modem speed.
2 Attempt 1200/75 bps connection.
3 Attempt a 300 bps connection.
5 Attempt a 1200 bps connection.
6 Attempt a 2400 bps connection.
7 Attempt a 4800 bps connection.
8 Attempt a 7200 bps connection.
9 Attempt a 9600 bps connection.
10 Attempt a 12000 bps connection.
11 Attempt a 14400 bps connection.
12 Attempt a 16800 bps connection.
13 Attempt a 19200 bps connection.
14 Attempt a 21600 bps connection.
15 Attempt a 24000 bps connection.
16 Attempt a 26400 bps connection.
17 Attempt a 28800 bps connection.
18 Attempt a 31200 bps connection.
19 Attempt a 33600 bps connection.
S38= 56K Dial Line Rate Options. Set to maximum downstream
speed at which the modem attempts to connect.
001
0 56K disabled.
1 56K enabled. Auto speed selection, max modem speed.
2 32000 bps
3 34000 bps
4 36000 bps
5 38000 bps
6 40000 bps
7 42000 bps
8 44000 bps
9 46000 bps
10 48000 bps
11 50000 bps
12 52000 bps
13 54000 bps
14 56000 bps
S48= 7, 128 LAPM error control and feature negotiation.
S48=7 Negotiation enabled
S48=128 Negotiation disabled. Force
immediate fallback options
specified in S36
S36=0 or 2, and S48=7
LAPM or hang up
S36=0 or 2 and S48= 128