[asterisk-users] Non-global variable that follows channel?

Jonathan H lardconcepts at gmail.com
Sun Nov 27 11:13:23 CST 2016

Thanks, Richard - your code does indeed work reliably 100% of the
time, and thank you for that explanation.

I do think the docs at
could do with more clarification.

BTW, there were a couple of typos in your code, so for anyone who
wants to copy/paste, here's Richard's code WITH the curly braces  (
Set(SHARED(sharedVar,MY_CALLER) should be
Set(SHARED(sharedVar,${MY_CALLER}) )

exten => s,1,Answer()
    same => n,Verbose(1,Answered channel:${CHANNEL})
    same => n,Set(__MY_CALLER=${CHANNEL(name)})
    same => n,Dial(Local/s at svtest2,,g)
    same => n,Verbose(1,***In channel:${CHANNEL} sharedVar:${SHARED(sharedVar)})
    same => n,Hangup()

exten => s,1,NoOp()
    same => n,Set(SHARED(sharedVar,${MY_CALLER})="I have been set in
svtest2 by ${CHANNEL(name)}")
    same => n,Verbose(1,***In channel:${CHANNEL} sharedVar:
${SHARED(sharedVar,Local/s at svtest2)})
    same => n,Answer()
    same => n,Hangup()

Thanks again.

(BTW, looking forward to the day when Asterisk gets some kind of
asynchronous dialplan application - all this "dialling a local
channel" is just to get via music on hold so there's not silence while
a long operation happening, as per
:) )

On 27 November 2016 at 16:16, Richard Mudgett <rmudgett at digium.com> wrote:

> [svtest1]
> exten = s,1,NoOp()
> same = n,Answer()
> same = n,Set(__MY_CALLER=${CHANNEL(name)})
> same = n,Dial(Local/s at svtest2,,g)
> same = n,NoOp(Returned SHARED(sharedVar) = '${SHARED(sharedVar)'}
> same = n,Hangup()
> [svtest2]
> exten = s,1,NoOp()
> exten = n,Set(SHARED(sharedVar,MY_CALLER)="I have been set in svtest2 by
> ${CHANNEL(name)}")
> exten = n,Answer()
> exten = n,Hangup()

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