.. believe that the call details are sent from the concentrators/ISDN platform to a Sun server then the billing package FTP's the details to another server during the night where it is ripped apart by some other application and charged accordingly.
That's all I can say I'm afraid coz that's the extent of my knowledge on that one!! I don't get involved in the process so even the above could be complete cobblers!!
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
[toc:faq]Introduction:This document describes details on how NAT-T
works.Background:ESP encrypts all critical information, encapsulating
the entire inner TCP/UDP datagram within an ESP header. ESP is an IP
protocol in the same sense that TCP and UDP are I...