How can I eliminate echo during a phone conversation?
The number one cause of echo is from voice traveling out from the earpiece or speaker back into the mouthpiece or acoustic echo. Turning down the volume of the phone can greatly reduce this issue.
Another cause of echo is electromagnetic interference This can be the result of positioning the VoIP adapter too close to other electronic devices, such as, on top of the computer, or near the back of the monitor, or next to a power strip. These three devices have particularly large electrical fields and should be given extra attention.
Cheap phones can also be the cause of echo, and not just with a user at that phone, but throughout the premise. Using cordless phones, can also introduce echo, sometimes the result of outside interference.