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Range:
S9
Carrier Detect Response Time
S9 determines how long a carrier signal must be present for the modem to confirm it. The longer the
response time, the easier it is for the modem to correctly recognize a carrier without mistaking other
signals or transient noise on the line as a carrier.
Range:
S10
Lost Carrier To Hang Up Delay
S10 sets the length of time, in tenths of a second, that the modem waits before hanging up
after a loss of carrier. This allows for a temporary loss of carrier without causing the local
modem to disconnect. When S10 is set to 255, the modem functions as if a carrier is always
present.
The actual interval the modem waits before disconnecting is the value in S10 minus the value
in S9. Therefore, the value in S10 must be greater than that in S9, or else the modem
disconnects before it recognizes the carrier.
Range:
S11
DTMF (Touch-tone) Tone Duration
S11 sets the duration of tone in DTMF dialing. This value has no effect on pulse dialing.
Range:
S12
Escape Guard Time
S12 determines the escape guard time. The escape guard time is the minimum waiting time required
before and after entering the escape code (three consecutive escape characters) in the on-line state. It is
also the maximum waiting time allowed between any two consecutive escape characters. If the waiting
time before or after the escape code is shorter than the guard time, or if the waiting time between
consecutive escape characters is longer than the guard time, then the modem does not recognize the
escape command and stays on-line.
If the escape guard time is set at 0 second, it is impossible to return the modem to command state.
Range:
S14
Bit Mapped Options
Bit
bit 0 (E)
bit 2 (Q)
bit 3 (V)
bit 4,5 (&P)
bit 6(P or T)
1 - 255 seconds.
1 - 255 tenths of a second.
1 - 255 tenths of a second.
50 - 255 milliseconds.
0 - 255 fiftieths of a second.
Value
Description
0
Disabled.
1
Enabled.
0
Disabled.
1
Enabled.
0
Numeric.
1
Verbose.
00
39/61 make to break ratio/10pps
01
33/67 make to break ratio/10pps
10
39/61 make to break ratio/20pps
11
33/67 make to break ratio/20pps
0
T (Tone dial).
1
P (Pulse dial).
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