When ever I get a call interupt, go the call, I cannot hag up on the call without hanging up of the first call as well. It says Hang Up All. Then, if you wait, you get a phone call back from your cell number and the original caller is there. I believe if you swap, then minutes continue to accrue on both calls until you Hand Up All

Question: Is there any way to hang up on the second caller and go back to the first not have the second continue to show on the screen?