The crossword solution for the term CELL NO., SAY is TEL, which is an abbreviation for telephone. Telephone is a communication device that allows two or more people to talk to each other from different locations. It is one of the most widely used communication devices in the world and has been around since the late 19th century. The term 'cell no., say' refers to the fact that many people now use cell phones instead of landlines for their telephone communication needs.