asterisk users - Sep 2012 - context local: unexpected KW _LOCAL

Hi,

Is the "local" context a reserved word in extensions.ael?
If so, what is it used for?

Can I define 'context local {};' somehow?

This is the error I'm getting:

ERROR[24659] ael.y: ==== File: /etc/asterisk/extensions.ael, Line 67, Cols:
9-13: Error: syntax error, unexpected KW
_LOCAL, expecting 'default' or word

I don't mind using a different context name but would simply like to know
why this error shows up.

Thanks,

Vieri