LinkedIn Pinpoint 678

Today's puzzle felt surprisingly straightforward compared to yesterday. As soon as I saw Camera and Smart together, a lightbulb went on. The connection seemed almost too obvious to be true. I hesitated after the third clue, but seeing Pay next to Touch-tone locked it in. The final clue, Cellular, fits perfectly into the group, leaving no room for doubt. In the end, the answer Words that come before phone is one of those 'slap your forehead' moments. It seems so simple once you see the full list.