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Which Scenarios?
Which of these scenarios are in- and out-of-scope?
How to route calls between the two „end“-servers?
Routing of calls implies to find out in the originating network the destination network and,
if no direct interconnection between originating network and destination network exists,
transit networks are required to interconnect.
Are transit networks in-scope?
Transit for L3 also or only for the application layer?
PPT Version