After using my sendo x for a few calls (i always use bluetooth because i drive HGV's) my sendo will refuse to let me make any more calls. It will just hang untill it auto disconnects the call, it will only connect the call if it displays the message "note: active diverts". it doesn't matter how i try to make the call or if i close all the open apps it just wont dial ! only switching off the phone and sometimes removal of battery will solve problem. and then phone will dial normally for a few calls. I would have to use bluetooth anyway as my microphone now does not work. also battery life has suddenly taken a turn for the worse so i suspect the ir port has activated it self. a look at menu settings show that it is possible to activate ir port but no way of deactivating it!