sean darcy wrote:
> I have two internal analogue extensions off a TDM400P. If the first is
> busy, I'd like to ring the second. So:
>
> [incoming]
> exten =>s,1,Answer()
> exten =>s,n,Dial(${mainline},60)
> exten =>s,n,ExecIf($["${DIALSTATUS}" = "BUSY"]?Dial(${secondline},30))
>
> But it doesn't work because * first tries Call Waiting on the main line.
> Here I dial out:
>
> -- Starting simple switch on 'DAHDI/1-1'
> -- Executing [...@internal:1] Answer("DAHDI/1-1", "") in new stack
> -- Executing [...@internal:2] Set("DAHDI/1-1", "CALLERID="house"
> <2127873453>") in new stack
> -- Executing [...@internal:3] Dial("DAHDI/1-1",
> .............................
>
> And now an incoming call:
>
> -- Executing [...@incoming:1] Answer("IAX2/nhi-10929", "") in new stack
> -- Executing [...@incoming:2] Dial("IAX2/nhi-10929", "DAHDI/1,60") in
> new stack
> -- Called 1
> -- IAX2/nhi-10929 requested special control 20, passing it to DAHDI/1-2
> -- IAX2/nhi-10929 requested special control 20, passing it to DAHDI/1-2
> -- IAX2/nhi-10929 requested special control 20, passing it to DAHDI/1-2
> -- DAHDI/1-2 is ringing
> -- IAX2/nhi-10929 requested special control 20, passing it to DAHDI/1-2
> -- IAX2/nhi-10929 requested special control 20, passing it to DAHDI/1-2
> -- CPE supports Call Waiting Caller*ID. Sending 'Seandarcy/212 573
> 1432'
>
>
> Is there a way to check the status of a dahdi channel _before_ dialing it?
>
> exten =>s,n,ExecIf($["DAHDI/1${DIALSTATUS}" =
> "BUSY"]?Dial(${secondline},30)) ??
>
> What's special control 20 ??
>
> Any help appreciated.
>
> sean
>
BTW, this is on 1.6.1.
sean
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