How to create Extension on Asterisk 1.4.24

How to create Extension on Asterisk 1.4.24. I have access Asterisk 1.4.24 using HTTP. I am on Admin Tab and under right hand side menu - Basic - Extensions. But Extension is disable. Please guide me how to create extension on Asterisk 1.4.24.

Thanks in advance.

Asterisk 1.4.24 doesn’t include a GUI. You need to identify the GUI and ask on the support channel for that GUI, or abandon the GUI and get a copy of Asterisk: The Future of Telephony, or view it online.