[Asterisk-Users] Callmanager 4.1 and asterisk

[Edgar de Leon]

Hello everybody,

im newbie in VoIP, but find this project asterisk very interesting, i
tried to install and its a great sw, i really get sorprised about all of
its functions, we need to use the asterisk server in conjunction with
cisco callmanager.

We have a Cisco Callmanager 4.1 and the clients are softphones from cisco
IPCommunicator, but all the support service of our company are linux
machines,  i read about callmanager uses skinny a propetary protocol and
there are no softphones from linux to talk with it, so we need to install
vmware to use ipcommunicator or the other solutions as i read is get the
asterisk server using sip phones in the linux and windows machines and
configure the call manager to talk with the asterisk server thru sip
protocol, is this the real way to do that?? is there a easy way to do
this?? i found this link

http://www.voip-info.org/wiki-Asterisk+Cisco+CallManager+Integration

but i need to know what things to do to transfer all the extensions from
de callmanager to the asterisk sw, or if only made the changes in the
sip.conf as said in the link above the callmanager gets all the control??
or if i need to declare all the extensions in the asterisk?? can anybody
help me??

TIA

Edgar