My friend has a Samsung Galaxy mobile phone and he is paranoid that someone (wifey) is listening in to his conversations both in comings and outgoings.

When we are at work both of us 20+ storeys above ground he can hear traffic noises / woolies or coles megaphone announcements.

So is there a programme that play spy craft on mobile phones, so a 3rd party can listen on their phone or another device?

Any help would be great, I'm tired of his 2am phone calls to complain!

Cheers.