At the moment Asterisk is included as external package and you need to manually configure the file in the directory /etc/asterisk.
I am going to build an Asterisk web interface as soon as possible.
More than one year after release of 1.4, any news?
The Asterisk has moved to 1.6 or even further with 1.8. It would be great if we could catch up with the pace. Or would be more better give some hints/notes on the compilation of Asterisk in Zeroshell.