Why does the other phone echo when called from a cellphone

[frever]

other people hear an echo when I talk to them from my brightside verizon phone . can this be fixed??

 

[hang-the-9]

Call again, if you are using a headset, try a different one. If you can't fix it that way, contact Verizon.

 

[topkite]

It is fire,police,and or rescue interference