The Nest Doorbell (wired, 2nd generation) has a speaker and a microphone for two-way talk and quick replies, and it also works with Google Assistant devices, so you can ask a Nest Hub to show the front door, and voice problems fall into two groups: the talk feature on the doorbell and Assistant commands for it. For talk, open the doorbell in Google Home and tap Talk, then hold the microphone icon while you speak. If you cannot be heard, check the phone's microphone permission for Google Home, that the doorbell is online and that the volume is up.
The checks in more detail
A weak Wi-Fi link makes the audio choppy or delayed, so check the signal. The doorbell's speaker is small and weather exposed, so water or dirt muffles it. For Assistant commands, such as asking a smart display to show the doorbell, the doorbell and the display must be in the same Home and signed in to the same account, and Assistant must be set up on the display. If a command is not understood, use the doorbell's name as it appears in the app and rename it if it is hard to say.
Some features depend on a subscription, such as announcements of visitors by name with Familiar faces. If the Nest Hub shows nothing when you say show me the front door, check that the doorbell is online and that casting is allowed. A common cause of silent two-way talk is the phone being muted or in a call. If the doorbell chime does not play in the house, that is the chime's wiring or settings, a separate issue, covered in the setup and power pages. Keep the doorbell's firmware and the Google Home app updated, because voice features arrive in updates.
Test by saying a command near a Hub while the doorbell is online and watching the result. If the problem is limited to one display, reset that display. If voice works on none after all steps, contact Google Nest support. If your family complains that visitors cannot hear them, check the phone's audio route: a call to the doorbell uses the phone's microphone, and if a Bluetooth headset is connected, the sound goes there. Disconnect the headset to test. Keep the app in the foreground while talking, since some phones restrict background audio, and stay within a good Wi-Fi area during the talk.
Differential
Likely causes of “Nest Doorbell (wired, 2nd gen) does not respond to voice control”, and how to tell them apart
- 1
A refused microphone permission
What separates it You cannot be heard on Talk
How to confirm Allow the microphone for Google Home
- 2
A weak Wi-Fi link
What separates it Choppy or delayed audio
How to confirm Improve the signal at the door
- 3
A muffled speaker
What separates it Faint sound at the door
How to confirm Clean the speaker opening
- 4
A different Home or account
What separates it The display cannot show the doorbell
How to confirm Use the same Home and account
- 5
A hard-to-say name
What separates it Assistant does not understand
How to confirm Rename the doorbell
Before you touch a setting
Record this first — changing settings destroys the evidence
- Whether Talk works in the app
- The phone's microphone permission
- Whether the display and doorbell share a Home
- The doorbell's name
Try in this order
0 of 6 completedAllow the microphone
ReversibleFor Google Home.
Test Talk in the app
ReversibleHold the microphone icon.
Check the Wi-Fi at the door
ReversibleAnd improve it.
Rename the doorbell
ReversibleTo something easy to say.
Check the display's Home and account
ReversibleThey must match.
Update the app and doorbell
ReversibleInstall updates.
Model-specific
What is true of this model and not of its siblings
- Two groups
- Talk in the app and Assistant commands.
- Same Home
- Display and doorbell must share it.
Stop boundary
When this stops being a self-service repair
- !If Talk fails on every phone with a strong signal, contact Google Nest support
- !If one display fails, reset it
- !Check the volume
Evidence ledger
Sources behind this answer
Exact questions
Common questions
Why can't visitors hear me?+
The microphone permission or a weak signal.
Can I ask a Nest Hub to show the door?+
Yes, in the same Home.
Does Talk work offline?+
No.
Why is the sound muffled?+
The speaker may be dirty.