OK there are 4 skype users in question here: user1: fast university internet, fast laptop. (me) user2: fast university internet, iPad (friend used to test my skype) user3: fast residential connection, iPad. (family) user4: medium/low residential connection, average windows 7 PC. (family) 1 can call 2+3 with no issues. 3 can call 1 with no issues. 3 can call 4 with no issues. yet 1 can't call 4 without serious issues in call quality. How is this the case? Is there anything I can do you resolve the issue with calls from 1 to 4? I'm kind of getting the blame on this one which is a shame, what's going on?