Video doorbells and intercom systems combine cameras, two-way audio, and door control. Each piece adds a potential failure point.

1. Common systems

  • Ring (consumer / small business)
  • Reolink (mid-market)
  • Hikvision intercoms (enterprise)
  • Doorbird (premium)
  • 2N (telecom-grade, common in apartment buildings)
  • Aiphone (older standard, still widely used)

Each has its own app and configuration approach.

2. Doorbell rings but no app notification

Common cause: phone notifications not enabled:

  • Phone settings → Notifications → app → enable
  • Some Android phones aggressively kill background apps; exclude the doorbell app
  • Vendor cloud outage; check vendor status

3. Doorbell rings but no audio in app

When the call connects but you can't hear:

  • Phone notification permissions for microphone
  • Vendor app permissions
  • App may need restart

4. Two-way audio broken

If they can hear you but you can't hear them (or vice versa):

  • Audio direction is a common issue with cheap intercoms
  • Check microphone and speaker on both ends
  • For weatherproof outdoor units, the microphone screen may have debris

5. Doorbell offline

Many doorbells run on:

  • Wired power (continuous low-voltage AC, like old chimes)
  • Battery (Ring Battery models)
  • PoE

For wired: check the transformer (in the basement or attic typically) is functioning.

For battery: replace or recharge the battery.

For PoE: see [camera offline](/kb/camera-offline).

6. Wi-Fi-connected doorbells

Wi-Fi doorbells need a strong signal at the door:

  • Outdoor units may have weak Wi-Fi due to brick/concrete
  • Check signal strength in the doorbell's diagnostic page
  • May need a Wi-Fi repeater near the door

7. Door release not working

If the intercom triggers a door release:

  • Check the wiring at the door release
  • Most are 12V DC; verify voltage at the release
  • Some are aged out and need replacement

This is often an electrical / locksmith ticket more than IT.

8. Multiple devices

For intercoms used by multiple people:

  • Each person's phone/tablet needs the app
  • Each gets notifications independently
  • Audio may conflict if multiple people answer simultaneously

9. Recording from doorbell

Some doorbells continuously record; others only on motion or ring:

  • Continuous recording is better for liability
  • Motion-only saves storage and battery
  • Configure based on your needs

10. Privacy and visitors

Recording at the door may have legal implications:

  • Visitors may need notification (signage)
  • Some jurisdictions require explicit consent
  • Audio recording is more restricted than video

When to ticket

Raise a ticket if:

  • Wi-Fi connectivity at the door is consistently weak
  • Two-way audio is broken after vendor setup support
  • Door release wiring needs work (likely electrician needed)
  • Integration with access control or video management is required

Include the doorbell model, what's broken, and what you've tested.