It is illegal to record telephone calls without the consent of the people involved in the phone conversation, states Digital Media Law Project. Some states require that one party must give permission while other states require both parties to give consent.
Federal laws allow recording telephone calls with the consent of at least one of the people involved, states Digital Media Law Project. Laws differ by state, so it is essential to understand the laws, especially for calls involving two states. It is also illegal for people to record a phone conversation in which they are not a party. In addition, federal laws do not allow placing bugs or devices in a home, office or a person's phone.