I think it is the PING to the final destination. Working for that Call Center I have to access their server. If the PING is high it takes a long time until people hear me or certain sites open at my end. Those sites are crucial as there is info I have to relay very fast when answering the phone.
The European Call Center Tech said, the ISP has to do some re-routing. The ISP here tells me they are looking into it, and it would be extremely difficult and bla bla bla. So I am starting to loose hope....
If you look at my tracert to that German server, the first 10 lines are all here in our little island. And I feel it is taking far too long to get anywhere. No?