[Asterisk-Users] Dialing part of the extension

[Tzafrir Cohen]

On Sat, Feb 11, 2006 at 03:26:26PM -0800, Michael Collins wrote:
> FYI,
> If you want to learn more about why ${EXTEN:1} works, check out the
> Asterisk TFOT book, chapters 4 and 5.  Page 95 of chapter 5 deals
> specifically with the ${EXTEN} variable and the syntax of adding ":1"
> (or ":2", ":3", etc.) - good stuff to know.
> 
> Check it out: http://www.speakup.nl/en/opensource/asterisktfot/

Or try http://www.voip-info.org/wiki/view/Asterisk+variables

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