My H700 bluetooth headset will not connect to my phone, an XV6700, if there is a call in progress. If I already have the headset on (boom opened) and connected to the phone, it works fine. But if it is not on (boom closed) when I get a call, the headset will not connect when I turn it on- even if the phone is just ringing. Has anyone else experienced this problem? It was working fine up until a couple of days ago. Did not drop or get it wet.