I don't know if it is a factor, but I have a Razr. When I'm on the phone, and another call comes in, I hear a beep, but pushing the "receiver up" button doesn't get it. Do you have to wait and check voicemail to see what it was? With the phone alone, you can put the original call on hold and catch the second. Thanx.

 

Good question, I have a razr with the same issue.
Does your nav display the caller id on the screen? I have only had my car a short time but I think mine displays only when the car is stopped. Is this the same with yours or is there an option to get it to display when moving.

 

Go to lexus.com and check the pdf for connecting your particular phone to BT. For the Razr V3 it says you need a new software version for the phone, if you have problems with call waiting.

 

CWS-
Thank yu for the idea.
Marki-
Sorry, I don't remember the answer to your question. I "think" that I get caller ID for the people that I have on speed dial, not ones that are on my phone. I don't get any ID for incoming second call.