FB_CALLMONITOR: fix not working telnet login, when user based authentication is configured in FritzBox
FB_CALLMONITOR: fix not working telnet login, when user based authentication is configured in FritzBoxView Changes
Source: FB_CALLMONITOR: fix not working telnet login, when user based authentication is configured in FritzBox (http://sourceforge.net/p/fhem/code/7599/)