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MODEM 325 AND MODEM 325 CARD
This invalid message can be returned when a block of options is being changed. The conditions for this
invalid response are as follows:
• An undefined option number is specified. In the example above, if option 12 is undefined for a
certain modem (and no other error conditions apply) options 10 and 11 would be changed as
specified in the command message. The next option to be changed would be option 12. The modem
would detect that this is an undefined option, stop execution of the command, and return an
INVPV<sp>012 message. Options 10 and 11 would still be changed as commanded; options 13 and
14 would be unchanged.
• An out-of-range value for a particular option is specified. In the example above, if the fourth value in
the option string is undefined or out-of-range for option 13 in a certain modem (and no other error
conditions apply) options 10 through 12 would be changed as specified in the command message.
The next option to be changed would be option 13. The modem would then detect that the value is
undefined or out-of-range for that option, stop execution of the command, and return an
INVPV<sp>013 message. Options 10 through 12 would still be changed as commanded; options 13
and 14 would be unchanged.
8.5.1 S
C
S
AVE
URRENT
PRK saves current option settings.
Responses:
VAL
Valid command received. Transmitted on receiving an error-free command with no
transmission error such as a parity error. This confirmation is sent before the command
is executed.
INVCU
Invalid command—command unknown.
Example: TRK
INVMS
Invalid command—message syntax error.
Examples:
PRK;0
PRK Q
8.5.2 R
F
ESTORE
ACTORY
PRP
restores current option settings to factory option set
n
Restoring a factory option set disables the V.25 synchronous dialer.
If no parameter follows the command, the modem automatically selects factory option set 1.
Responses:
VAL
Valid command received. Transmitted on receiving an error-free command with no
transmission error such as a parity error. This confirmation is sent before the command
is executed.
INVCU
Invalid command—command unknown.
Example: TRP
128
(PRK)
ETTINGS
S
(PRP
)
ETTINGS
N
, where
is a 1-digit decimal number.
n
n
NOTE
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