5.18.3.11. END TO END Connections 
In end-to-end signal transmissions, the transit register and destination
register correspond only to the originating register. Enough information
is retrieved from the origin to allow the through-connection. In particular,
the number of the B station is transmitted only once. This means that
the connection set-up is faster than with a link-by-link transmission.
The feature is only effective in transit systems but does not have to
be administered throughout the network.
IMPORTANT:
If you do not administer the END TO END feature,
LINK BY LINK is set up. As a rule, the following applies: transmission
is LINK BY LINK if the configuration is incorrect. CorNet links are inserted
into the connection transparently and do not interfere with the END TO
END set up.
Identification is possible only after the B station has been reached
and depends on the classes of service there.
Example:
