The sofia-sip port is very outdated. Upstream is dormant and points at https://github.com/freeswitch/sofia-sip
which has seen many releases in the last dozen years. There never has been a consumer of the library that I can find, so I guess the bundled utilities may have been of some use at some point. I suggest we remove the port, or else someone who cares about it should update it to a more recent version.
