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A door phone or door bell phone is a set of electrical and electronic elements used to handle two-way communication (street to home) in houses, apartments or villas. The device is connected to a secure communication system used to control the opening of the door giving access to any kind of buildings, offices, or apartment blocks. They are so widely used in the mentioned structures, that
Table of Content
1 Industry Overview
1.1 Doorphone Industry
Figure Doorphone Industry Chain Structure
1.1.1 Overview
1.1.2 Development of Doorphone
1.2 Market Segment
1.2.1 Upstream
Table Upstream Segment of Doorphone
1.2.2 Downstream
Table Application Segment of Doorphone
Table Global Doorphon