I get asked quite a lot for example IP addresses that potential customers can ping to get an idea of latency to the SysAdminMan servers.
You can ping the following addresses to get an idea of latency -
UK Server – ping uk-test.sysadminman.net
US Server – ping us-test.sysadminman.net
Latency below 150ms should be fine – http://voip.about.com/od/glossary/g/latency.htm
The UK servers should work well for customers in Europe and the US servers for customers in the US and Canada.
If you see unexpectedly high latency to either of the test servers please get in touch and we can look to see where the delay is being introduced.