We are testing 3CX for our company and so far are thrilled. The only issue we are having is a delay when having a long distance phone call with someone. Not as bad as the satellite phone delay from a cruise ship...but definitely noticeable both by people in my office and the people they are speaking too. We are using callcentric for our external VOIP and on the test site myvoipspeed.com it is showing consistently less than 1ms of jitter and 0.0% packet lost. Does anyone have a sense of whether it would be better to try upgrading our internal server or buying an 8 port gateway and connecting thru our existing pots lines to eliminate this problem?