There's been an version bump of the recommended version on the FTB Launcher. It's now v1.0.18. I cannot find a changelog for this version, so I'm not updating until I do.
I have update the server to the recommended version (1.0.16) today. However DynMap was crashing it. I've disabled DynMap for the time being. Additionally due to the changes in Openblocks I'll now allow mining in all ages as long as you use an Enderquarry. BC/TC4/IC2 Quarrying/Mining is still limited to the Deep Dark.
@csimon I don't know who you are and you have no post history. Can one of the other Edugeeker's vouch for you?
Still down, the Toronto data centre has had a major issue (Out of coffee, alien invasion, cleaner unplugged it, IDK) . Got a free month as compo though.
SIP simply requires sufficient bandwidth and low latency connection that's stable (low jitter). If you can provide that with your current connection then there is no need to run a second dedicated line IMHO. You can calculate the bandwidth usage for SIP before hand and you can monitor your connections latency and jitter on your current connection usage levels any time you like. It's perfectly possible to load test your connectivity before/during your VoIP implementation too.
My square house flies. Hows that for imaginative? (BTW there are some berry bushes a quick panicked run up the hill to the West from spawn. That should be enough food to keep you going).