>>Are the tones at the beginning of the audio phone key tones?<<
The tones sounded different than phone tones to me, more like an old tv audio test pattern sound, for want of a better description.
I just don’t know for sure.
OMG! Just got back “in country”. Hadn’t heard any of this news until I landed in Dulles early this AM. LOTs of catching up to do.........and the TM is the best place to do it. Thanks to all of you for the pings and PMs. Will try to respond later.