I like these threads - always make me think...
How would London Info react to you 'disappearing' off frequency to call D&D? Would they find out some way on the landline or would they make fruitless calls when you didn't report your turning point and then initiate overdue action (which would be the point that they found out...)
I get a little annoyed/ concerned when folks disappear off my frequency without signing off - always makes me slightly nervous why they've gone - just changed frequency or gone down...