What are the similarities between telegram and I text back in the day?

I text is like an iPhone.

Similarities? Sends a message to someone else

A telegram: The sender would go to the telegraph office and the clerk would write the message down and then send it by tapping out the message to the nearest telegraph office to the address it was being sent to, the clerk there would write it out and a telegraph delivery boy would take the 'letter' to the person it was being sent to… One famous person who was a telegraph delivery boy as a teenager was Frederick Henry Royce ( the Royce part of RollsRoyce) he delivered in Mayfair London before he went on years later to design and build cars…