Regular beeps during calls

[Android Question]

Brand new Galaxy s4 mini on Orange
Getting beep-beep at one minute intervals during calls
[Ee/Orange support haven't a clue - suggest a Master Reset/new SIM/new phone)
Any ideas?
John
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[Hadron]

Some phones have a setting to do this - I guess to help people keep track of how much a call is costing. If this has been set by default then a factory reset won't help - it will wipe your apps and data and restore all settings to default, so if that is the default you'll have all the hassle for no gain!

I don't know the Samsung software, but suggest looking in the settings of the phone app, as well as any call settings in the main menu.