QSO ("SO..")

Conversations often start with so. "SO, how's it going?" or "SO, how are the children?". QSO is another word for contact, or communication. As a statement it's, "I can communicate with" or "I'm in contact with". As a question it's "Can I communicate with?"

CYUXO LJPQZ FKVBW SRGIDM
The Entire Alphabet Punctuation Numbers