It looks like problems of Wammu on Windows are over my possibilities. I don't use this system at all and I'm unable to help with fixing found problems. The current biggest problem is outdated python-gammu library which contains few bugs and too old Gammu library.
Compiling new version for somebody with experiences on compiling Python modules on Windows should be easy task. But nobody volunteered to do this so far and one build I got from BitPim developers is not a long term solution.
Upcoming Wammu version might be incompatible with that old python-gammu, so future of Wammu for Windows doesn't look good right now. It's up to you, who use Windows, if you want this port to be alive.
