While()
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While()

Starts a while loop.

        
          While(expression)

Starts a while loop. The application returns to this point if EndWhile() is encountered as long as expression is true; if it is false, execution continues after EndWhile().

exten => 123,1,Answer()
exten => 123,n,Set(i=1)
exten => 123,n,While($[${i} < 5])
exten => 123,n,SayNumber(${i})
exten => 123,n,Set(i=$[${i} + 1])
exten => 123,n,EndWhile()
exten => 123,n,Hangup()
[Note]

Internal help for this application in Asterisk 1.4:  

  -= Info about application 'While' =- 

[Synopsis]
Start a while loop

[Description]
Usage:  While(<expr>)
Start a While Loop.  Execution will return to this point when
EndWhile is called until expr is no longer true.

diff output to internal help in Asterisk 1.2:  

5c5
< Start a while loop
---
> Start A While Loop

See also. the section called “EndWhile()”, the section called “ExitWhile()”, the section called “ContinueWhile()”, the section called “GotoIf()”

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