Sorry for the newbie question but I am trying to figure out this great device. I have Obi100 which I managed to figure out is capable of using two VOIP services. Hence, I am using Google Voice as SP1 and want to configure CallCentric as SP2. I figured out, I think, how to do that but am wondering, when it is all configured, how will I be able to switch beteen the two VOIP services? Thanks for any help!