Lately (the few days to a week) we have started hearing an echo when talking to someone on the phone. The other party says things sound fine, but we hear our own voice echoing back to us. This is on every call, regardless of who we're calling. It doesn't matter where we are calling from, or whether we are using a bluetooth headset or not. And it's happening on multiple phones in the family (iPhone, LG, and Samsung devices), so I doubt it's hardware.
Also, SMS messages to/from these devices are often delayed by several minutes or even an hour or more.
Completely powering off the devices and restarting them makes no difference.
The only thing they all have in common is Fido. Could these symptoms be caused by a congested network?
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Perhaps this site might help with cancelling the echo. Some phones might call it different things: noise suppression, noise reduction... If enabled, try disabling. If disabled, try enabling.
I admit it's a little strange having all of your phones affected at once, however, it's worth a try.
Hope this helps