Christian explained on 19/01/2008 :[color=blue][color=green][color=darkred]
>>> Could both the ATA and the notebook be registered at
>>> the same time with VoipDiscount or is only one at once
>>> allowed. If both can register which one (or would both)
>>> ring?[/color][/color]
>[color=green]
>> Both should ring, whichever one answers first gets the call.[/color]
>
> No, not with Betamax-providers (like VoipDiscount). Only one client is
> allowed at the same time. Clients (softclient or ATA) periodically "register"
> theirselves. The one who sent the last REGISTER is the one that will be
> logged in (and will get any incoming calls).
>
> When using the VoipDiscount softclient, you even will get a notification that
> another client is logged in, and it will ask you if you want to re-login,
> before re-registering.
>[/color]

However, although the above is correct, it is possible to make
/outgoing/ calls on any number of ATAs, without registering.