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About product and suppliers:
        Alibaba.com offers 21,171 video door phone products. About 3% of these are cctv camera, 1% are access control system. 

A wide variety of video door phone options are available to you, such as paid samples, free samples. 

There are 20,686 video door phone suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and Hong Kong, which supply 97%, 1%, and 1% of video door phone respectively. 

Video door phone products are most popular in Western Europe, North America, and Northern Europe. 

You can ensure product safety by selecting from certified suppliers, including 5,743 with ISO9001, 599 with Other, and 112 with ISO14001 certification.