What do you mean outside of your home calling area Koodo doesnt have zones like freedom?
Do you mean out of province and you have a province wide calling plan? You'd be charged as making calls outside of your province if that's what you mean.
Would you get charged if it was receiving a Canadian call from home? If you know the answer is no, then that would be the same as receiving a call from the US. If the answer is yes, then it would still be the same as receiving a call from the US