I'm not an Android fanboi, so I don't know how to check these things, but to listen in on calls the phone needs to be rooted. Then there are softwarez available that can listen in to the mic, calls, sms etc etc.

Flash phone back to stock or get another phone if you are that paranoid.

Spying on calls like that is illegal too, so if they are caught, you can create a lot of trouble for them.

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[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR]