The X30H + Blutooth Headset + Skype just doesn't seem to work. It doesn't matter what BT headset you use. Skype just won't work well with it (nor will Stanaphone).
BUT I've since used Microsoft Portrait over WiFi with the same Jabra BT250 and it works flawlessly! So it's not the BT headset or the X30, but something screwy with Skype and Stanaphone. I'm guessing it has something to do with full duplex sound... call it a hunch.
If you are dead set on using your X30H with your BT headset with VoIP, switch to Microsoft Portrait.
I've run extensive tests with Microsoft Portrait and it performs to expectations each and every time.
