said by Canezoid:A lot of people have posed this same question over the years, but in my experience since you're the only one experiencing the "echo" effect, I would start w/ your network, meaning from the ISP side back.
Echo is usually related to packet loss due to latency w/ your connection, not that it's bad, just that's it's poor somewhere. Since your the only 1 hearing it pretty safe to say it's on your end somewhere.
Are you using cable or DSL? Either one, best way to isolate is to direct connect to the ISP modem and play that way, if trouble follows then you know it's coming from your ISP side, then you may need to see what bandwidth coverage you have and if it's sufficient.
All kinds of ins and outs for this problem and sometimes difficult to isolate. I've got a 16/2 cable connection here and echo happens every now and then, it's just the nature of VOIP, it's 1's and 0's, not electrical.
Peace!
I have had my cable company check the lines , they say there are clean and I have a good signal . I have tried direct connecting to modem and I have also went to their highest speed available 20/2 and replaced all cable lines and cords ,but I still get the echo so I went back to the 5/1 . Is it just something I have to live with? My bet is that there is some kind of problem on my cable isp's network but I dont know . Will getting a new xbox maybe help? Because I have dropped it quite a few times on HARD CEMENT floor, maybe something is broke or something. 
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