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12，專供壁掛式多線消防電話主機KT9251/B（壁掛式消防通訊主機）
1,2N線制電話主機；有單門/8門/16門主機
2,主分互叫；分機摘機即通話，主機顯號
3,可三方通話
Conventional Telephone Panel(Wall-mounted structure)
1,The main phone can call several extensions one by one and permit
the extensions to communicate.
2,A total of 1/ 8/16 extensions can be provided for the main phone.
3, Each extension can call the main phone without dialing. And the main phone can call any of the fitted extension too. What’s more, the extension number displays when it is calling.
4,The systems can start digital recording when communicating.