Information about sim cards, network signal, neighboring cells. For the dual sim phones Android API provided methods only for 7.0 and above (5.1/6.0 partialy). For some dual sim phones can getting only information about 2 sim and signal strenght for active sim. (Tested on qualcomm 5.1) For some devices can get information about 2 sim and signal stenght for 2 sim. (Tested on mtk 4.4) Signal Strenght: 1) API - use standard android API 2) SYS API - use vendor API. On some devices different calc