Getting an Alice DSL connection

Just wanna clear something up...
I have a T-Com connection already but just the very basic phone connection.
If I get Alice DSL, will I have to contact T-Com to get them to do anything? Do they need to add DSL to the line or anything?
Also if i get Alice DSL will I then recieve 2 bills (one from T-Com for the phone and one from Alice for the DSL? Or will Alice be my only bill?)
Cheers

No
Yes, but this is requested thru/by Alice.. Not you
2 Bills.

Normally Alice take over your line, so you only get one bill and they sort out the switch over from T-Com to themselves. However, like DK says, there might be an option where you can keep the T-Com line, I'm not sure. If there is, then it'll work like he suggests.

Alice DSL now offers 16Mbps connections for the same price as 4Mbps earlier, provided the connection to your house supports the speed. Is the telephone flatrate offered over VoIP or fixed line?

The telephone flatrate is over the fixed line. Whether it's worth paying the extra for is questionable though, since with a careful choice of VOIP provider and a Fritz!Box Fon or similar then you can get something pretty close to an (international) flatrate much cheaper than Alice's national flatrate.

If Alice take over the T-Com line are you still paying them the 16 Euro or so grundgebuhr? I'm moving into a new flat so have nothing. Alice Fun looks like 35 Euro's but is that all I have to pay. When I loo at Freenet it looks like I still would need to pay T-Com for the basic line. With Arcor they say No telephone line necessary so I assume with them there is no extra cost.

Alice take over the whole lot, so you no longer have a contract with Telekom and pay them nothing.

I'd do the calculations as to whether you'd need the Fun tarif or whether the Light Flat tarif and a VOIP Router wouldn't work out cheaper overall since the monthly fixed costs are lower and calls are cheaper too, or even pretty much free (although setting it up takes a little knowledge, or a knowledgable friend).

Thanks for the tip. Alice Light with something like Skype or even Peterzahlt then looks better potentially.

I've got Alice Light Flat (plus an extra €4 for an ISDN line), then a Fritz!Box so we can call on normal phones and don't have to have the computer on, and then two VOIP providers (voipcheap.com and lowratevoip.com, both operated by betamax). With a bit of pre-planning, you can keep phoning for next to nothing to most countries. Only downside is that the VOIP is pre-pay so need to make sure you don't run out of credit, or look to a VOIP contract provider.

I'd recommend keeping an analogue line and not going for the decoupled DSL though - since DSL and VOIP connection problems aren't unknown then it's nice to have a fallback (and means that incoming calls go over a standard fixed line and won't therefore hog your bandwidth!).