Over here the working channels are used for all non-emergency traffic. Announcements of CG info calls will be made on 16 and move to the appropriate local working channel. Other than that, local working channels are general purpose. Hailing the CG for routine traffic is on the working channel.
In addition, our local fisherfolk make good use of the working channels to call in distress issues to the CG, as they know their buddies can't hear them as they're duplex...
(Malin Head CG, this is Sean on the Deep Harvester, we have a wee problem)
Deep Harvester Malin Head what is your problem?
(Malin, we have been taking on water for a few hours and we were OK but then we needed the second pump and that was OK but now the second pump has failed and we thought we'd give you a heads up)
Deep Harvester Malin Head - we are initiating a MAYDAY please advise your exact location
(Ah jaysis Malin, early days for that - could you not just get the lads on the Lifeboat to run a pump out to us? We're only 25 miles off Glen Head)
Deep Harvester Malin Head - R118 will be over your location in 55 minutes, expect to see the CASA topcover before that, please standby for their transmission. Arranmore RNLI have been tasked and should be with you in 90 minutes with equipment.
(Ah nooooo! We just need a pump - that's a wild fuss - we'll be a laughing stock)
It's fun trying to guess the silent half of the chat