sentences:  The "originating marker" handled call routing up to the outgoing trunk, and the "terminating marker" routed calls from the incoming trunk all the way up to the termination point at the "line link frame" (LLF).Notably, this design meant that interoffice calls were handled in the same basic way as "intra"office calls.No distinction was made between calls terminating in the same office, or a different crossbar office.