Call and listen to music!

Have to say I still dunno why there isn't any phone out there which has this function as I do this allot of times, I'd be listening to music from my laptop and a phone call would come in and be listening music one ear and listen to the call on the other. This is my kind of multitasking hehehe. But have to say sometimes be listening to the radio while a phone comes in and both headphone jumps to phone mode and be missing the news from the radio or and important talk on the radio. Really hate when I just want to hear what weather it be and someone calls me exactly at that time. It could be just me who want this feature but have to say its just a simple thing to program. If I go phone shopping the next time and someone present that the phone is great to listen to music I'd be definitely ask if it got this feature.