The profile is set to silent after the iqama window is displayed. I think it is normal since after the iqama you probably would want your mobile to go silent. If you don't want it, you can always disable iqama by setting the time margin to zero.

The azan file and the iqama files are located at /usr/share/sounds/mprayertime_azan.mp3 and /usr/share/sounds/mprayertime_iqama.mp3

Is there a problem with it? Please share.

I am sorry, I wanted to create a page to explain the new features, but I didn't have enough time lately. But it's okay, your responses are helpful. I'll do that as soon as I can.