FAQ T640 T440 Inbound DIDs - Search/replace pattern to cut prefixes (Hidden)

When you set one line manually you have to “cut” incoming caller-ID in "Gateway groups" to the pattern that you defined in “Inbound routes”.

If phone number is 02871 2397567 and we like to let pass only last 3 digit (567) we have to “cut” 02871 2397.

There are severl ways how can number come in, that way we have to check all possibility’s.

			Prefix		City prefix		Number			Comment
			0049		2871		2397		567
			+49		2871		2397		567
			49		2871		2397		567
			0		2871		2397		567
					2871		2397		567
							2397		567
		(?:	0049\|\+49\|49\|0	)?						Will be checkt if 0049 or +49 or 49 or 0 is part of incomming number. If yes, this part will be cut.
	(?:				2871	)?				Will be checkt if 2871 is part of incomming number. If yes, this part will be cut.
^(?:							2397	)?		Will be checkt if 2397 is part of incomming number. If yes, this part will be cut.
									(.*)	All number those are still there will be saved in $1
^(?:	(?:	(?:	0049\|\+49\|49\|0	)?	2871	)?	2397	)?	(.*)	Expression.

(?: ( ?: (?: 0049|\+49|49|0)?2871)? 2397 )?(.*) In $1 will be saved 567.

If we what to use complete number 2397567 in “Inbound routes” that should look like this:

		Prefix		City prefix		Number	Comment
		0049		2871		2397567
		+49		2871		2397567
		49		2871		2397567
		0		2871		2397567
				2871		2397567
						2397567
	(?:	0049\|\+49\|49\|0	)?				Will be checkt if 0049 or +49 or 49 or 0 is part of incomming number. If yes, this part will be cut.
^(?:				2871	)?		Will be checkt if 2871 is part of incomming number. If yes, this part will be cut.
						(.*)	All number those are still there will be saved in $1
^(?:	(?:	0049\|\+49\|49\|0	)?	2871	)?	(.*)	Expression.

( ?: (?: 0049|\+49|49|0)?2871)?(.*) In $1 will be saved 2397567.

Explanation:

(.*) – all numbers which still are there

$1 – is variable in this variable will be saved all from (.*)

(?:XXXXX)? – means if XXXXX exist this part will be “cut”.

| – is "or"

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