[Asterisk-Users] Making a call using MGCP

[Leonardo J. Tramontina]

Sirs,

I have a question about CreateConnection (CRCX) at MGCP.
For example, I have the phone number "5220107" and want to make a call for 
it using MGCP through a media gateway. How can I proceed?
I know the command I must send to the media gateway should be like this:
CRCX <trans_id> <endpoint> MGCP 1.0
"C", "L", "M" and "X" parameters
 SDP parameters

 My question is: where do I inform (which parameter) the number I want to 
call (5220107)??


 Thanks
Leonardo