FB_CALLMONITOR: fixing "use of uninitialized value" when a active call disconnects right after FHEM startup
FB_CALLMONITOR: fixing "use of uninitialized value" when a active call disconnects right after FHEM startupView Changes
Source: FB_CALLMONITOR: fixing "use of uninitialized value" when a active call disconnects right after FHEM startup (http://sourceforge.net/p/fhem/code/6852/)