Due to room layout my 622 is not reachable by phone line or ethernet. Is there a wireless option? Does it matter?
You can search this forum - the 622 can receive broadband via the power line if you get the power line adapter that plugs into your main router. Or, get a wireless game adapter (usually marketed towards XBox users) for $50-$100.
I use this one - it cost me about $60 when it was on sale at Fry's. DLink and others make similar models.
USRobotics Ethernet Bridge