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change system-parameters maintenance
Issue 5 October 2002
195
555-233-119
DTE Auto-Data
Speed
Enter up to 6 characters to adjust the speed of the data source
(DTE) UART to the outgoing (modem-to-modem) data rate, up to
9600 baud.
This field sets the link speed between the switch and the modem,
not the speed of the modem. Do not set it so the serial data fills the
modem buffer faster than the outgoing data rate, especially
because data compression is disabled.
Disable Data
Compression
This field turns off the default data compression algorithms that are
in use by most consumer modems. This field is 6 characters long
and is case in-sensitive.
Enable Error
Control
Enter up to 6 characters to turn on the V.42 LAPM and MNP error
control protocols, if available on the modem.
This V.42/MNP/Buffer mode first attempts to negotiate V.42 error
control with the remote modem. If this fails, then the modem
transitions to MNP, and if this fails then no error control is used.
Misc. Init.
Param
Enter up to 20 characters to support any initialization parameters
that are not already specified. The AT commands in this field are
the last initialization parameters to be sent to the external modem.
Auto-Answer
Ring Count
Enter up to 6 characters to show the number of rings required
before the modem automatically answers an incoming call, if the
switch does not answer first, within the first few rings. Typically, the
maximum value is 255. The values 1-255 denote the number of
incoming ring cycles. (S0=10)
NOTE:
The number of rings is optimally set above 5, and if at all
possible, keep the default of S0=10.
Dial Type
Enter T to use tone dialing between the modem and the Central
Office. Enter P for pulse dialing. This field will be concatenated
with the dial string. (T)
Adjustable
Make/Break
Ratio
This field controls the make/break ratios of pulses and DTMF
dialing, and is important when using a modem that may be
transferable from country to country. The Intel product information
has support for the different make/break options for pulse dialing
only.
Intel uses “&P0” to select a ratio of 39% make and 61% break for
communication within the U.S. and Canada. The option “&P1” sets
a ration of 33% make and 67% break for the U.K. and Hong Kong.
Dial Command
This field denotes the dialing command of the modem.(D)