应急电话直接取代了公司的400系列模拟电话。
They directly replace the company's 400 Series ana-log phones.
工程人员在那些无人在家的住户那里留下了应急电话卡片。
Engineers have also left CARDS with an emergency number at those properties where no-one was in.
相机通常安装在墙壁，天花板，屋顶，角落，灯杆和应急电话盒上。
The cameras are typically mounted on walls, ceilings, rooftops, corners, light poles, and emergency call boxes.
售后：专业的售后服务队伍，全天候应急电话，48小时内解决疑难问题，为您提供最快最好的售后服务。
After sale: Professional service team, all-weather emergency telephone within 48 hours to solve difficult problems, to provide you with the fastest and healthiest after-sales service.
售后：专业的售后服务队伍，全天候应急电话，48小时内解决疑难问题，为您提供最快最好的售后服务。
After sale: Professional service team, all-weather emergency telephone within 48 hours to solve difficult problems, to provide you with the fastest and healthiest after-sales service.
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