3Com MSR 50, MSR 30 manual Meanings of characters in the string argument, 2635

	2635
Table 687 Meanings of characters in the string argument
Character	Meaning
0-9	Digit 0 through 9.
# and *	Valid digit each.
.	Wildcard, which can match any valid digit. For example, 555.... can match any
	number beginning with 555 and ending up with four additional characters.

!The character or sub-expression before the sign does not appear or appears only once. For example, 56!1234 can match 51234 and 561234.

+The character or sub-expression before the plus sign can appear one or more times. However, if the plus sign appears at the head of a number, the number is an E.164 number and the plus sign itself does not represent a specific number or number repetition. For example, 9876(54)+ can match 987654, 98765454, 9876545454, and so on, and +110022 is an E.164 number.

%The character or sub-expression before the percent sign does not appear or appears multiple times. For example, 9876(54)% can match 9876, 987654, 98765454, 9876545454, and so on.

output-number: Output string of a number involved in number substitution, consisting of characters such as 0 to 9, #, *, and ., up to 31 characters. The characters are described in Table 687.

The sub-expression (one digit or digit string) before !, %, or + is not exactly-matched digit(s) and is handled in a similar way the wildcard (.). These signs cannot be used alone and must be preceded by a valid digit or digit string.

The dot (.) in the input-numberand output-numberarguments is handled in three ways:

1The dot (.) in the output-numberargument is considered invalid. If you use the dot-matchcommand to set the dot match rule to end-only(that is, only dots at the end of the input number are handled), the dots in the output-numberargument are discarded immediately, and the digits which all the dots at the end of the input number correspond to are added to the end of the output number.

2Extra dots in the output-numberargument are discarded. If you use the dot-matchcommand to set the dot match rule to right-left(from right to left) or left-right(from left to right), and the number of dots in the output-numberargument is greater than that in the input-numberargument, all digits which the dots in the input-numberargument correspond to are selected to replace the dots in the output-numberargument one by one from right to left (or from left to right). The remaining dots (that are not replaced) in the output-numberargument are discarded.

3Extra dots in the input-numberargument are discarded. If you use the dot-matchcommand to set the dot match rule to right-left(from right to left) or left-right(from left to right), and the number of dots in the input-numberargument is greater than or equal to that in the output-numberargument, the dot handling includes two cases:

■For the right-left dot match rule, digits which the dots in the input-numberargument correspond to are extracted from right to left according to the number of dots in the output-numberargument to replace the dots in the output-numberargument one by one. The digits that are not extracted in the input-numberargument are discarded.