An automatic external defibrillator (AED) includes an integral wireless modem configured so that, upon activation, the AED automatically connects to a wireless network and reports the event to an emergency services center or remote server to call for an ambulance. The activation report may be accomplished by calling an emergency services center and playing a prerecorded voice message that includes AED location information. Alternatively, the activation report may be transmitted via a wireless data network to a remote server which routes the information to appropriate authorities. After the activation report is transmitted, the AED may transmit patient and treatment data to the server. The AED may include a speaker phone capability so a caregiver can talk with a dispatcher or medical team. The AED may also automatically report activation data and periodic self-diagnostic testing results to a manufacturer or service provider via a wireless data call to a remote server.
