List of Specific Industries
North American Industry Classification System (NAICS) codes for this industry
[ 561621 ] = Security system services (except locksmiths) — Alarm system monitoring services
[ 621999 ] = All other miscellaneous ambulatory health care services — Pacemaker monitoring services
Dedicated centers may be designed to interact primarily with home networks. These centers might interact on two or more levels such as: voice between the network and monitoring technicians, transmitted data and explanatory messages, or alarm situations that require retransmission to emergency facilities such as hospitals and ambulance services.