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If phone number is 02871 2397567 and you want  to let pass only last 3 digit (567) to extension 12, you have to cut off  02871 2397 and in "Inbound routes" set "Pattern" to ^(567) and "Target" to 12.

 

There are severl several ways how number can number come in, that way 's why you have to check all possibility’spossibilities.

 

 

 

 

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

)? 

 

 

   

 

 

It will be checked if 0049 or +49 or 49 or 0 is part of incomming number.

If yes, this part will be cut off.

 

(?:

 

 

 

2871

)?

 

 

 

It will be checked if 2871 is part of incomming number.

If yes, this part will be cut off.

^(?:

 

 

 

 

 

 

2397

)?

 

 It will be checked if 2397 is part of incomming number.

If yes, this part will be cut off.

 

 

 

 

 

 

 

 

 

(.*)

All numbers, who are still there, they will be saved in $1

^(?:

(?:

(?:

0049|\+49|49|0

)?

2871

)?

2397

)?

(.*)

Expression.

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