User`s guide

V.25 bis Autodialer
Modem 3600 11-11
The modem must be able to accept 40 non-ignored characters besides
the PRO command (leading zeros and semicolons are not considered
ignored characters).
Responses:
VALValid 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.
INVCUInvalid command - command unknown.
Example: TRO 0;1;1
INVMS Invalid command - message syntax error.
Examples:PRO;0;1;1
PRO;
INVPSInvalid command - parameter syntax error.
Examples:PRO 0;1;0;
PRO 0;1;1;1
PRO
PRO 0;001;1
INVPVInvalid command - parameter value error.
Examples:PRO 0;1;Q
PRO Q;1;1
PRO 0;0;0
PRO 68;1;0
when option 68 is undefined for the modem.
INVPV<sp>xxxInvalid command - parameter value error.
Example: PRO 10;5;0;0;0;2;1
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 above example, 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
INVPV012 message. Options 10 and 11 would still be changed as
commanded; options 13 and 14 would be unchanged.