misdn.conf: [general]

The misdn.conf file contains a "general" subsection, and user subsections which contain misdn port settings and different Asterisk contexts.

In the general subsection you can set options that are not directly port related. There is for example the very important debug variable which you can set from the Asterisk cli (command line interface) or in this configuration file, bigger numbers will lead to more debug output. There's also a trace file option, which takes a path+filename where debug output is written to.