ZenCom

With ZenCom, the user can interact with his Zennio Intercom from anywhere in the world.
ZenCom allows you to see who is ringing your doorbell, having a conversation and even open remotely as if you were at home.

LINKS

User manual: https://www.zennio.com/documents/manual_zencom_en
Privacy Policy: https://www.zennio.com/zencom-privacypolicy
EULA: https://sip.zennioapps.com:4003/res/ZencomTermsOfUse.pdf