THE PHONETIC ALPHABET.
Communication in a noisy environment has given rise to numerous aids to improve intelligibility, examples of these are the CB radio ten-code, Q codes in amateur radio and aviation, police codes, etc., and other jargon.
Use of phonetic alphabets has been documented since the first world war when the RAF used a succession of radiotelephony spelling alphabets to aid effective communication. These phonetic alphabets aren't strictly speaking 'phonetic' as this term really describes a technique of pronunciation of unfamiliar words, whereas the phonetic alphabet for telephony utilises familiar words in place of individual letters to improve readability.
During the Nineteen-fifties, NATO developed the "NATO phonetic alphabet" (actually the ICAO alphabet) to replace the numerous other variants to ensure that the token words would be understood and intelligible (and also pronounceable) to all NATO allies in the heat of battle.
There have been numerous and often short lived variants, but the NATO alphabet has been most enduring.
The first alphabet owes a lot to World War I Western Front trench slang. Using token words such as Ack, Gee Emma and Esses - although as yet, I have been unable to determine the entire alphabet. (If there ever was an entire alphabet - May've only been used for certain letters, where considered necessary)
Further examples may be seen in the table below, although this is not an exhaustive collection as there are many more for different languages around the globe, including one for 'Esperanto'
| Char | NATO | Pronunciation (NATO) |
'43-'56 | '42-'43 | '24-'42 | WW1 |
| A | Alfa | AL-FAH | Able/Affirm | Apple | Ace | Ack/Apples |
| B | Bravo | BRAH-VOH | Baker | Beer | Beer | Butter |
| C | Charlie | CHAR-LEE | Charlie | Charlie | Charlie | |
| D | Delta | DELL-TAH | Dog | Dog | Don | Duff |
| E | Echo | ECH-OH | Easy | Edward | Edward | Emma |
| F | Foxtrot | FOKS-TROT | Fox | Freddy | Freddie | |
| G | Golf | GOLF | George | George | George | Gee |
| H | Hotel | HOH-TEL | How | Harry | Harry | |
| I | India | IN-DEE-AH | Item/Interrogatory | In | Ink | |
| J | Juliet | JEW-LEE-ETT | Jig/Johnny | Jug/Johnny | Johnnie | |
| K | Kilo | KEY-LOH | King | King | King | |
| L | Lima | LEE-MAH | Love | Love | London | |
| M | Mike | MIKE | Mike | Mother | Monkey | |
| N | November | NO-VEM-BER | Nab/Negat | Nuts | Nuts | |
| O | Oscar | OSS-CAH | Oboe | Orange | Orange | |
| P | Papa | PAH-PAH | Peter/Prep | Peter | Pip | Pudding |
| Q | Quebec | KEH-BECK | Queen | Queen | Queen | Queenie |
| R | Romeo | ROW-ME-OH | Roger | Roger/Robert | Robert | |
| S | Sierra | SEE-AIR-RAH | Sugar | Sugar | Sugar | |
| T | Tango | TANG-GO | Tare | Tommy | Toc | Tommy |
| U | Uniform | YOU-NEE-FORM | Uncle | Uncle | Uncle | |
| V | Victor | VIK-TAH | Victor | Vic | Vic | Vinegar |
| W | Whisky | WISS-KEY | William | William | William | Willie |
| X | X-Ray | ECKS-RAY | X-ray | X-ray | X-ray | Xerxes |
| Y | Yankee | YANG-KEY | Yoke | Yoke/Yorker | Yorker | Yellow |
| Z | Zulu | ZOO-LOO | Zebra | Zebra | Zebra |
| 1 - One - WUN | 2 - Two - TOO | 3 - Three - TREE | 4 - Four - FOW-ER |
| 5 - Five - FIFE | 6 - Six - SIX | 7 - Seven - SEV-EN | 8 - Eight - AIT |
| 9 - Nine - NIN-ER | 0 - Zero - ZEE-RO |