[asterisk-biz] Attractel released two new versions of Zoiper IAX and SIP softphone:

[Hadar Pedhazur]

I installed the latest version on Windows. I made a call through 
my server (unregistered, so I couldn't receive calls). The call 
went through fine, but I was unable to hang up. The button was not 
clickable. I ended up having to quit the program to hang up the 
call. This was not the case on the previous (2.06) release.