[Asterisk-Users] Dialplan variables

[Ronald Wiplinger]

Norman Zhang wrote:

> Hi,
>
> May I ask what does
>
> exten => s,1,Answer
> exten => s,2,ResponseTimeout(5)
>
> exten => i,1,Playback(pbx-invalid)
>
> s, t, i stands for? It says it is someexten but I still don't get it.
>

    Predefined Extension Names

Asterisk uses some extension names for special purposes:

    * *i <http://www.voip-info.org/wiki-Asterisk+i+extension>* : Invalid
    * *s <http://www.voip-info.org/wiki-Asterisk+s+extension>* : Start
    * *h <http://www.voip-info.org/wiki-Asterisk+h+extension>* : Hangup
    * *t <http://www.voip-info.org/wiki-Asterisk+t+extension>* : Timeout
    * *T <http://www.voip-info.org/wiki-Asterisk+t+extension>* :
      AbsoluteTimeout
    * *o?
      <http://www.voip-info.org/tiki-editpage.php?page=Asterisk+o+extension>*
      : Operator


from     http://www.voip-info.org/wiki-Asterisk+config+extensions.conf

bye

Ronald