[asterisk-users] Idiot's question

[Philipp Kempgen]

Venefax schrieb:
> I have two lines in my dialplan that I wish to make it into only one, and I
> fail
> X.,n(entrada),Set(CALLERID(num)=${CALLERID(num)}0000000000)
> X.,n,Set(CALLERID(num)=${CALLERID(num):0:11})
> 
> It means: add '0000000000' to the caller id, and then take the first 11
> chars from the left. It aims to detect null caller ids and replace them by
> zeros. How can I write this expression in just one line?

I think it does multiple passes to evaluate ${} so maybe
	Set(CALLERID(num)=${${CALLERID(num)}0000000000:0:11})
works.

However assuming a callerid to always be 11 chars is not
generally valid.

Grüße,
Philipp Kempgen
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