1.5.1 Direct modification syntax

Expression	Description
->	Prefix change. Allows to change or remove initial characters of the dialed number.
!	Always send. Substitutes the whole dialed number with the one specified after the exclamation mark.
\|	Adds suffix to the dialed number
OR	Logical expression allowing to define multiple modifying functions each with different Prefix, only the matching one will executed
[12]	Required exact number length (in this example 12 digits).
[<12]	Required number length less than 12 digits.
>12]	Required number length more than 12 digits

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