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Asterisk IVR - How to return to the top of the menu

I have created an IVR. The IVR prompts user to press 1 to confirm. I am using the READ() function to receive the input from the user and placing this value into a variable. Then I am using GotoIf to test the value of the variable. If the variable = 1, then I branch to another extention. I wanted to be able to loop back to prompting for input if any other key is pressed, but if the asterisk (*) key is pressed, I want to be able to return to the top of the IVR. From what I can see, READ() only works with numeric keys.

This is a sample segment of the dialplan:
[confirm]
exten => s,1,Playback(silence/2)
exten => s,n(menutop),Playback(hello)
exten => s,n,SayDigits(${ORDNUM})
exten => s,n,Background(is-correct)
exten => s,n,WaitExten(,)
.
.
.
exten => 7,1,Playback(cancel-this)
exten => 7,n,SayDigits(${ORDNUM})
exten => 7,n,Read(CANCELORD,correct-press-1-press-star-return,1)
exten => 7,n,GotoIf($[ ${CANCELORD} = 1]?cancelit:)
exten => 7,n,GotoIf($[ ${CANCELORD} = *]?menutop:)
exten => 7,n,Goto(,7,1)
exten => 7,n(cancelit),DeadAGI(cancelit.php,${ORDNUM})
exten => 7,n,Goto(,hang,6)
exten => hang,1,Playback(thank-you)
exten => hang,2,Hangup()
exten => hang,3,Playback(tryagin)
exten => hang,4,SayDigits(${ORDNUM})
exten => hang,5,Hangup()
exten => hang,6,Playback(cancelled)
exten => hang,7,SayDigits(${ORDNUM})
exten => hang,8,Hangup()

I though I could try something like this:
exten => 7,1,Playback(cancel-this)
exten => 7,n,SayDigits(${ORDNUM})
exten => 7,n,Read(CANCELORD,correct-press-1-press-star-return,1)
exten => 7,n,GotoIf($[ ${CANCELORD} = 1]?cancelit:)
exten => 7,n,GotoIf($[ ${CANCELORD} != [0123456789] ]?menutop:)
exten => 7,n,Goto(,7,1)

So that if 1 is pressed it goes to the "cancelit" section. If any key not in the range [0-9] is pressed go to the "menutop" and then if any of the numeric keys are pressed loop back to the beginning of this section of the dialplan and prompt again. I could not figure out how to test for a range.

Thanks.

ASKER CERTIFIED SOLUTION

DrDamnit

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netrxinc

ASKER

Originally I had used that logic. But I want to be able to go to "menutop" only if the asterisk (*) key is pressed. If any other key is press I want to return to exten=7,1

DrDamnit

So use the same logic, and test for the asteirsk (*) key first, then "1" for confirmation, then default to returning to exten=7,1

Asterisk is "a" for testing.

DrDamnit

or at least I think it's "a".... you can always do a READ(THISVAR,1), then use NoOP to output what a DTMF asterisk is saved as when you stick it in a variable...

nauliv

How about putting this portion of code into its own context and using background ?

* on your original code:

exten => 7,1,Goto(cancel-confirm,s,1)

* then:

[cancel-confirm]
exten => s,1,Playback(cancel-this)
exten => s,n,SayDigits(${ORDNUM})
exten => s,n,Background(correct-press-1-press-star-return)
exten => s,n,WaitExten(10)
exten => s,n,Goto(s,1)

exten => 1,1,Goto(somecontext,exten,cancelit)
exten => *,1,Goto(s,1)
exten => i,1,[put here what you want to do if anything else than * or 1 was pressed]

netrxinc

ASKER

Thanks for your help. I tried to evaluate the asterisk (*) key as "a" or as *, I also used the NoOp and it displayed that I had entered *. In the end I did a series of cascading GotoIf statements for each value, and at the end had a Goto command to return to the top. It works.

Thanks again

DrDamnit

nauliv:

That was a solution I thought of as well...but I didn't know if he had any context only variables in his dialplan code. Doing cascading logic saves the effort of having to store them as globals. Unless you have a better way?