Windows Marketplace V.90 - Manual (Page 57)

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S37 = 4 reserved
S37 = 5 1200 bits/s
S37 = 6 2400 bits/s
S37 = 7 4800 bits/s
S37 = 8 7200 bits/s
S37 = 9 9600 bits/s
S37 = 10 12000 bits/s
S37 = 11 14400 bits/s
S37 = 12 16800 bits/s
S37 = 13 19200 bits/s
S37 = 14 21600 bits/s
S37 = 15 24000 bits/s
S37 = 16 26400 bits/s
S37 = 17 28800 bits/s
S37 = 18 31200 bits/s
S37 = 19 33600 bits/s
S38 56K Dial Line Rate (default 1)
There are 2 S-registers which support K56flex connections. S38 sets the maxi-
mum K56flex downstream speed that the modem attempts to connect. To disable
K56flex, set S38 to 0. The S37 register is used to control the upstream V.34 rate.
(Note: Use the AT-V90=x command to control V.90 connections)
S38 = 0 K56flex disabled - V.34 connection (see S37)
S38 = 1 K56flex autorate - maximum achievable connection
S38 = 2 32000 bits / s
S38 = 3 34000 bits / s
S38 = 4 36000 bits / s
S38 = 5 38000 bits / s
S38 = 6 40000 bits / s
S38 = 7 42000 bits / s
S38 = 8 44000 bits / s
S38 = 9 46000 bits / s
S38 = 10 48000 bits / s
S38 = 11 50000 bits / s
S38 = 12 52000 bits / s
S38 = 13 54000 bits / s
S38 = 14 56000 bits / s
S40 ETC Startup Autorating (default 0, range 0-2)
S20=0 Startup with normal autorating.
S20=1 Startup at initial rate of 4800 or below.