[asterisk-users] Asterisk as "Proxy" and more device for a number

[Luca Bertoncello]

Hi list!

I'm very new in Asterisk and VoIP, and of course I have a problem... :)

Well, my problem is, that Deutsche Telekom wants me to change my ISDN  
to VoIP... :(
I must do that, since I have no alternative.

Well, I have now two VoIP-phones (Thomson ST2022 and KE1020A). I can  
configure my two numbers by Deutsche Telekom and I got now an extra  
number from Messagenet.it.

Now the problems:
1) It seems that I can't configure my ST2022 to have two profiles and  
both are running on different servers
2) I want that when a number will be called, both phones rings

I think, I need an Asterisk-Server between my phones and the  
VoIP-Provider, isn't it?

Well, now the questions: am I right? Should I install an Asterisk on  
my PC to do that?
And of course: how can I do that? How can I set up Asterisk to serve  
as "proxy" for these three numbers and send the calls to a number to  
both phones?

Unfortunately, I didn't found any HowTo for my problems...

Thank you very much for your help!
Luca Bertoncello
(lucabert at lucabert.de)