Just a short note to point that a minimal proxy configuration file has been recently pushed in misc/examples/mixed, respectively:
It could be a good starting point, especially for testing new modules that are either developed or when starting to play with a new module, because it provides a simple SIP proxy that takes care of routing requests within dialog, but leaves out components usually enabled in production, such as authentication, nat traversal, presence, … in this way making testing on local system/network easier.
Enjoy!
Thanks for flying Kamailio!