No luck with my last question on Sat Nav Traffic, but hopefully this one is a bit simpler. I have noticed that the Service Status display for the phone only ever shows 1 bar. Now I thought this was a signal strength so expected it to change as I drove the car. Have used the phone and the quality of connection is fine. Also have checked on the phone itself and get full strength on that. So is this Service Status bar not what I think it is?

 

ive never seen it go higher then 1.