Hi all.
Newbie here with very little tech now how.
I am having trouble setting up my VOIP at the moment, with my adaptor not seeming to work. I'll run down my hardware for you and any help you can give would be great (expect obvious and important information to be omitted....I just dont know any better

)
I have a Naked ADSL connection
D-Link DSL-502T modem
Belkin N Wireless Router
Netcomm ATA V210P
It all works fine without my ATA connected, and even once i connect the ATA the internet can still be accessed via the wireless router. I just can't get the little "SIP" light to come on.
I have been in contact with my ISP support and we have checked all the settings on the products, which are all apparently correct. They went on some incoherent ramble about "port forwarding" which made no sense to me.
SO, what information am I missing before you guys can help me? and how do I find it out?