from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A call of fire alarm to a fire station.
- n. Any method established to provide emergency access to a secure information system. In the event of a critical error or abnormal end, unprivileged users can gain access to key systems to correct the problem. When a firecall is used, there is usually a review process to ensure that the access was used properly to correct a problem. These methods generally either provide a one-time use User ID or one-time password.
fire + call (Wiktionary)