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USRobotics V.34 User Manual

Page 117

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COURIER HIGH SPEED MODEMS

Summaries and Tables B-23

Register

Default

Function
Setting S28 to zero eliminates the extra
tones, resulting in a faster connect time if,
for example, the modem is set to use V.21
modulation (300 bps) or V.23 modulation
(1200 bps).

S29

20

Sets the duration, in tenths of a second, of
the answer tones sent during V.21 hand-
shaking. Default = 20 (2 seconds). This
gives V.21 modems additional time to
connect in V.21 mode before timing out.

S30

S31

0

Reserved.

S32

9

Sets the function for the voice/data
switch. This is not a bit-mapped register.
Select the value for the desired function,
for example, ATS32=6.

ValueResult

0

Disabled

1

Voice/data, Originate mode.
See value 9.

2

Voice/data, Answer mode

3

Redial last number

4

Dial number stored at
position 0

5

Auto Answer on/off toggle

6

Reset the modem

7

Initiate Remote Digital
Loopback

8

Busy out phone line toggle

9

Default if a command string is
stored with the &ZC=string
command. When voice/data
switch is pushed and &ZC has
been enabled, modem executes
stored command string.
Otherwise acts like value 1,
Originate mode

NOTE: Only use the voice/data switch
when the modem is in Command mode .