Car is 2012 Toyota RAV4 Limited, phone is iPhone 5, updated to latest IOS revision.. When receiving call, I press off-hook button, call appears to be connected, but radio reverts to radio program after less than a second. Then, approximately 5 to 10 seconds later, call picks up and operates normally. Bluetooth on radio worked normally with previous phone, an iPhone 4, updated to IOS6. Took car to Toyota dealer, their tests(?) showed to them that nothing was amiss with the radio and they were not obligated to do anything additional. Have been seeing lengthy blogs regarding bluetooth issues with iPhone 5 and Nissan (Infiniti) vehicles, very few with Toyota. Any hope that Apple will be able to address this issue?