[Q] Call recording question and some more

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http://forum.xda-developers.com – Hi all, I have finally moved from my N1 to HTC One. currently i'm on the HTC one stock 4.1.2 German Vodaphone ROM. i want to record all my calls on it (i live in a different country that it's allowed here), I tried few apps but nothing worked well for recording both sides of the call. can someone suggest an app that will work well for me and share his "best practice" settings for it please? another question, because the 4.2.2 is being out now on OTA for unlocked devices, i wanted to know how do i check if my boot loader is unlocked or not? in addition, i saw that i have ADB ac (HowTos)