How low?
If the MULTICOM comes in then if operating below 2000 or 3000 ft agl you would monitor 126.7...except when operating within the vicinity of a CTAF or BA using another frequency.
Above that, it is your choice. If the boundaries stay, then the applicable ATS area frequency would be recommended. If the boundaries go, the the nearest ATS frequency as marked in the biscuit for that area.
Good airmanship would dictate what calls, if any, are made along the way.
Last edited by cogwheel; 6th Mar 2017 at 10:22.
Reason: Clarification