How do I get rid of feedback (echoing of what I am saying)? What causes feedback?
Feedback or echo is a problem that more often then not is a Network issue. It can be software phone related in some models when using Speakerphone and also the mic. It's more common when talking on a cross network system such as Verizon to T mobile or Att to Sprint. Another cause is sometimes having the volume too high on one of the phones and the mic re-loops the sound. If the problem continues or is present all the time I would contact Verizon.