[asterisk-users] speaker phone echo

[Christopher Corn]

I'm having speaker phone echo issues with my grandstream phones 100.
   
  i understand that the echo'ing issue is only obvious because of the round trip latency and that traditional phone lines have echo's too but because there is such a slight delay, it can be mistaken for side tone, which is perfectly normal.
   
  I don't have any echo issues now on my phones, unless i turn on the speaker phone, then i get acoustic echos. anyone else having this problem? what are some things I can do to alleviate this?
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