1) health care: inpatient, outpatient, infusion room of the hospital, nursing home, senior apartment, for patient/old people call a nurse/nursing staff.

2) service and the catering and entertainment industries: restaurants, cafes, restaurants, bath, Spa, hotel, hotel, KTV, night club, Business Club, conference room, foot bath, Jacuzzi, Internet point, video game entertainment, health center, chess and cards room, Mahjong, for consumer calling service personnel or request invoicing service echoed earlier incidents of emergency alerts.

3) manufacturing industry: factory floor, assembly line, for operator call technician/foreman/material supply, such as forklift operation.

4) other activities: School (classes/teachers of emergency call on duty and the bedroom the Security Office);

Supermarket (the cashier call security/change ... ... ）； Bank (supervisor/manager/Secretary of the Hall window calls the background/wealth managers, etc); Prison (inmates call the guards); Shopping malls (fitting room call attendant, floor supervisor call cleaning staff; call the cashier supervisor); Enterprises (call the Secretary/Department head, General Manager); Airports (security staff called security sector) Families (called child/nursing care for the elderly servant/louchang); Kindergarten (emergency emergency call) Court (judge, witnesses and emergency call marshals brought criminal case call Marshal) The Public Security Bureau (interrogation room for the arraignment of suspects) Construction site (site floor lift elevator wireless pager) Phone company call center (emergency call-level competent emergency call maintenance personnel, etc) … …