First off, SCCP and SKINNY are the same protocol. It's technically called Skinny Client Control Protocol (SCCP) but everyone calls it Skinny because it sounds less soviet.
The instructions provided in that document are valid. Are all of the ports on the VG204 built in CUCM? The gateway will attempt to register every port constantly. If CUCM doesn't have a configuration for that port it denies the registration which results in a transient connection. The net effect is essentially a DoS attack of CUCM. These alarms are warning of that occurring. Best practice is to always build all ports on SCCP/MGCP gateways, even if you don't intend to use them right away.
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