[asterisk-dev] Custom Command

[ZhangZQ]

HI,

I am new to Asterisk and just setup a asterisk. I want to extend the 
existing Asterisk command(application) to do something special such as 
turnning on a switch by setting the IO in parallel port after retrieving a 
specified DTMF code, but I don't know where can I find the information to 
extent the Asterisk command. If somebody know please let me know, thank you.


Regards,
ZhangZQ