Prowords
OVER	"I have finished my message and expect a reply."
OUT	"I have finished my message and require no reply."
ROGER or "Romeo"	"I have received and understood your last message."
SAY AGAIN	"Please repeat your last message."
I SAY AGAIN	"I repeat my last message."
PLEASE ACKNOWLEDGE	"Confirm you received my previous message"
MESSAGE NOT UNDERSTOOD	"I did not understand your message"
AFFIRMATIVE	"This is correct" or "Yes" or "I agree"
NEGATIVE	"This is not correct" or "No" or "I do NOT agree"
I SPELL	"I will spell the next word(s)"
STAND BY	"Please wait"
WILCO	I understand your message and will comply
Rule 1 : Always say the other station callsign first, your clasign last. For example : Alpha THIS IS Bravo, OVER Rule 2 : Every transmission should be terminated by either OVER or OUT (but NOT both).

More Prowords here : vk4radio.info/Prowords13.pdf

The Phonetic Alphabet and Time zones
A = Alfa GMT + 1	B = Bravo GMT + 2	C = Charlie GMT + 3	D = Delta GMT + 4
E = Echo GMT + 5	F = Foxtrot GMT + 6	G = Golf GMT + 7	H = Hotel GMT + 8
I = India GMT + 9	J = Juliett Local time*	K = Kilo GMT + 10	L = Lima GMT + 11
M = Mike GMT + 12	N = November GMT - 1	O = Oscar GMT - 2	P = Papa GMT - 3
Q = Quebec GMT - 4	R = Romeo GMT - 5	S = Sierra GMT - 6	T = Tango GMT - 7
U = Uniform GMT - 8	V = Victor GMT - 9	W = Whisky GMT - 10	X = X-ray GMT - 11
Y = Yanky GMT - 12	Z = Zulu GMT

* = Local time of the "observer"       NT time = India Kilo