How do I disconnect a call from my Iphone 6 plus

When I call out to a company, & it's going through their recording of press 1 to 9, my Iphone 6 will not hang up. I press on the dial pad the phone on the phone pad receiver, & it still will not disconnect. I keep hearing the recordings going on the other other end. Even when I click off & try to go to something else on my Iphone, the recordings still are going. It is driving me nuts! So, then I have to completely shut down the phone & start it back up to stop the recording. Please help! I shouldn't have to shut the phone completely down to hang up or disconnect from the company I've called.

Press the power button and it should stop the call. Pressing the home button gets you back to your apps, but won't disconnect the call on ANY iPhone. If this doesn't work, take it to a repair shop or get a new phone.

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