Called when a XFR command has been received.
Indicates that the notification server has send us the location of a switch-board server in order to make contact with a client, or that we must switch to a new notification server.
XFR [Transaction] [SB|NS] [IP:Port] ['0'|'CKI'] [Hash|CurrentIP:CurrentPort]
NSMessageHandler Class | XihSolutions.DotMSN Namespace