When you talk on the phone with someone, sometimes people like to record the conversation so they can listen to it later. However, there are rules about when it's okay to record someone without asking for their permission first.
In some places, you need to ask the other person before you record the call. This is because they might not want you to record them, and they have the right to say no. It's kind of like asking to share a toy with someone - you should always ask first, even if you really want to use it.
In other places, you might be allowed to record the call without asking. This usually happens if you are a part of the conversation yourself, like if you're talking to a customer service representative and they say they might record the call for training purposes. This is kind of like if you and a friend are having a talk and you both are okay with it being recorded.
It's important to follow the rules about telephone call recording laws, because if you break them, you could get in trouble. Just like if you break a rule at school or at home, there could be consequences. So, always remember to be respectful of other people's privacy when you're using the phone.