[LEGO <luis.ontanon@xxxxxxxxx>]

> Has anyone captures of Skinny sessions,
> or more information about the protocol ?

The deepest thing I've found yet regarding this protocol is at: 
http://www.ixiacom.com/library/technology_guides/tg_display.php?skey=skinny
http://www.ethereal.com/docs/dfref/s/skinny.html

>From there I've Inferred enough info for  creating a skinny Gop for mate:
 
Action=Transform; Name=skinny_message; skinny_msg=CallInfoMessage;
.skinny_start;
Action=Transform; Name=skinny_message; skinny_msg=OffHookMessage; .skinny_start;
Action=Transform; Name=skinny_message; skinny_msg=OnHookMessage; .skinny_stop;

Action=PduDef; Name=skinny_pdu; Proto=skinny; Transport=ip;
addr=ip.addr;  skinny_msg=skinny.messageid; 
skinny_conf=skinny.conferenceID; calling=skinny.callingPartyName;

Action=PduTransform; Name=skinny_message; For=skinny_pdu;

Action=GopDef; Name=skinny_leg; On=skinny_pdu; addr; addr; skinny_conf;
Action=GopStart; For=skinny_leg; skinny_start;
Action=GopStop; For=skinny_leg; skinny_stop;
Action=GopExtra; For=skinny_leg; calling;

I do not have traces (although I think I can find someone who does) so
I have not tested this config.

Luis