asterisk users - Jul 2007 - Digit Convesion and Digit Insertion

Hi List;

How can I convert some digits to another digits, and
how I can insert in the end or in the begining some
digits, for example:

If I have a number like 11336784888, then I need to
replace each digit of value 1 by 5, how?

Also how can I add digits to the numbers like adding
00 in the beginning, so the dialed number becoming:
0011336784888 or adding digits (like 99) in the end of
the dialed number, so it will become: 001133678488899,
how?

Regards
Bilal


 
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bilal ghayyad wrote:
> Also how can I add digits to the numbers like adding
> 00 in the beginning, so the dialed number becoming:
NUMBER=11336784888
exten => 1000,n,Set(NUMBER=00${NUMBER})
> 0011336784888 or adding digits (like 99) in the end of
> the dialed number, so it will become: 001133678488899,
NUMBER=11336784888
exten => 1000,n,Set(NUMBER=${NUMBER}99)


For the substitution bit, changes all ones to fives, I don't know a 
native way to do it.  Until someone told me a better way to do it, I 
might use AGI, although the overhead would probably kill a busy system 
-- I've only got up to three concurrent calls so I can waste the 
processing cycles.

Moj