I have a 2007 TCH with the navigation system and bluetooth. I have t-mobile as my cell provider.

When I am talking on my cell phone using the nav system bluetooth, everything works fine. However, if i receive a call while I am on the phone, both calls will be dropped. I have not been able to figure out how to switch from one call to the other while using the blue tooth feature.

Anyone else run into this issue? any suggestions?

Thanks
Tim