Can i use my own VOIP router with orange?

I wana take up a certain orange offer and would like to make use of the free uk and international internet calls via the live box. Is this just a VOIP service and will i be able to program the settings into my own voip router i currently use or not?

thanks

i would like to know the answer to this too

id call the support line but i doubt they know themselves what service there running knowone seems to have any brains on the support lines now days in many isps.