In this video I show the great usefulness of and how easy it is to install a device compatible with almost all old intercoms and video intercoms.
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Ring Intercom:
amzn.to/3Ht3lCM
Another option with a digital screen. (5-wire telephones only):
amzn.to/3S4XM2j
economical installation video to open doors (without communication or notification)
Негізгі бет How to receive calls from your old telephone on your mobile and open the door, very easy!!
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