What the existing connection tells
In a hard hall, narrow portico, or near an indoor post next to a speaker, a conversation can be reflected back. Sometimes it only occurs when someone is standing close to the outdoor post.
advice
Resolve intercom sound with ringing
An echo occurs when the microphone and speaker hear each other too loudly, but the exact cause can be in the outdoor post, indoor post, or environment.
The technical choice
Determine which side the echo is audible and when it starts. Compare a call at different volumes and without additional sound sources in the room.
What you let me arrange
Adjust placement, volume, or system settings based on the test. Do not replace parts just because an echo is audible; an acoustic cause requires a different solution.
Delivery to the door
Have a conversation from a normal distance on both sides and let two people speak alternately. Also check the app connection if the problem only occurs there.
Frequently asked questions
Does it always ring around due to a defective microphone?
No. Placement, volume and space acoustics can cause the same complaint.
Does lower volume always help?
Not always; first determine where the feedback originates.