I spent some time with my parents about a month ago fine tuning the echo cancellation on our SIP phones. Today I got a chance to refresh my memory while connecting the phones of a friend to a CallWeaver PBX I had setup for him. Hopefully I have now collected in one place all the settings that were changed from the factory defaults. If you have a Linksys SPA3102 phone adapter or a Linksys SPA942 phone, you may find some useful hints in here. (more…)