写真素材 - is acronym Cell Broadcast Service, emergency warning system that sends a warning message directly to the screen of every mobile phone in the incident area via mobile signal towers.
作品情報
is acronym Cell Broadcast Service, emergency warning system that sends a warning message directly to the screen of every mobile phone in the incident area via mobile signal towers.
- ID：246692367
- 作品種別：写真
- 作者名：Dontree Malaimarn
キーワード
- accidents and disasters
- alertness
- block
- broadcast
- call
- cell
- climate
- communication
- contact
- control
- crisis
- critical
- danger
- environment
- frequency
- government
- help
- information
- media
- message
- mobile
- mobile phone
- notification
- policy
- protection
- radiation
- red
- rescue
- response
- risk
- safety
- security
- service
- sign
- signal
- smartphone
- social media
- storm
- support
- symbol
- technology
- telecom
- thailand
- warning
- warning sign
- weather
- wind
- wireless
- wood
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