Practical guidance
What this means for your property
Internet loss and power loss are different failures. With a suitable local access-control design, stored physical credentials may continue to work during an internet outage even when app calls, remote release or cloud administration are unavailable. A power failure also affects the intercom, controller, network equipment and electric locking, so the result depends on the complete power and backup arrangement.
There is no reliable building-wide answer from the intercom model alone. WeTech reviews the intended behaviour during planning. Ask for each function to be documented and tested at handover, including the resident’s alternative way to enter, how management responds and which services resume automatically when connectivity or power returns.
What to confirm before proceeding
Separate the failures
Review loss of internet independently from loss of mains power and from a resident’s unavailable phone.
Check the whole power chain
Identify the backup provision for the controller, intercom, network equipment and relevant locking components.
Record tested behaviour
Document which calls, credentials and release functions work during each agreed test, including any measured backup runtime.