Not sure if this is a thing. We have very recently had a fiber upgrade. Since then we have had daily single ring phone calls. No number is recognised and they only ever last for one ring, and there is always one around 3.00am !! Looking online the faults look towards a ring trip. Nothing has changed other than the router and fiber conection.
Changed the micro filter and that hasnt changed anything. Im goimf to conect the phone to the master socket but just thought id check if any one has come across this ??
Thanks for the response. I ddont think its a call we are not getting as its happens outside of our normal call times. Early in the morning or late at night. Never had an issue with malicious calls ether. Defo feels like something is just triggering one ring.
Will try with just the master connetion and see if it improves.