QUOTE (CincyInDE @ Jun 17 2008, 1:55 pm)

Good information; thanks. I already have the equipment, Vonage contract, Cincinnati phone number (which is kind of important). I'm paying $US 15/month for 500 minutes, which is sufficient for my needs (for now, at least). And once I start earning Euros, that 15 bucks will be peanuts.
Are German ISPs obsessive and block ports willy-nilly, or is there something more complicated going on with the Vonage compatibility issue?
I have the same Vonage setup and will be trying to set this up next week after T-Online turns on my DSL. TCOM DSL speed is 3000 for my new house.
Does anyone know if T-Online blocks Vonage?
I heard that Vonage WRT54G wifi router does work with T-Online after a firmware update to allow long user name for PPPoe login...so my guess is other than the Speedport modem/router I shouldn't have a problem.
I bought their Speedport W 502V but I may return it and use my Dlink 514 to log in to the PPPoe account. I am undecided but if the Speedport works with my vonage router then I will keep the speedport one since is is Wifi G and my Dlink is only B speed.