Intercom & doorbells
Wiring vs wireless intercom trade-offs
Wired intercoms favour reliability and multi-tenant scale; wireless favours retrofit speed. Choose explicitly per site.
Wired strengths
Stable power/audio/video over planned cabling; better for large blocks.
Higher install labour upfront.
Wireless strengths
Faster retrofit where chasing cables is painful.
Interference and battery maintenance are ongoing costs.
Hybrid
Some estates mix wireless homes with wired gate stations—document carefully.
NMF helps pick architectures that match installer capability.