Hi all!
I have a small problem with my LG KS20. Probably caused by a beta version of a piece of software I installed. The problem persists even if I uninstall it, so I'm not sure its because of that.
Sometimes when I call somebody I hear two almost simultaneous call tones instead of one. This was happening all the time. The problem know is that one of the call tones persists even after the call is answered and even after I hang up. I have to soft-reset in order to stop it!
Any ideas?

As always: Just do a hard reset (factory delivery state) and restore the latest working backup.