FCP
(Five-bit Communications Protocol)

5-Bit
00000
00001
00010
00011
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
10000
10001
10010
10011
10100
10101
10110
10111
11000
11001
11010
11011
11100
11101
11110
11111

Alpha
[SPACE]
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
[Lower-Case/Default]
[Upper-Case]
[Numeric]
[Special]
-CONTROL-

Alpha
[SPC]
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z

Numeric
0
1
2
3
4
5
6
7
8
9
( [OPEN PARENTH]
) [CLOSED PARENTH]
÷ [DIVIDE](/)
× [MULTIPLY](*,·)
- [NEGATIVE/MINUS]
+ [PLUS]
. [POINT/PERIOD]
= [EQUALS]
[ [OPEN BRACKET]
] [CLOSED BRACKET]
{ [OPEN BRACE]
} [CLOSED BRACE]
^ [EXPONENT/CARET]
[UP ARROW]
[DOWN ARROW]
[LEFT ARROW]
[RIGHT ARROW]

Alpha
[SPC]
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z

Special Characters
(Spell-Out Char)
@ [AT SYMBOL]
\ [BACK SLASH]
, [COMMA]
$ [DOLLAR]
! [EXCLAMATION]
/ [FORWARD SLASH]
> [GREATER THAN]
- [HYPHEN]
: [COLON](i)

; [SEMI-COLON](j)
* [ASTREK/STAR]
< [LESS THAN]
" [DOUBLE QUOTE]
' [SINGLE QUOTE]
| [PIPE]
. [PERIOD]
? [QUESTION]
(LINE)[RETURN]
& [AMPERSAND]
(LINE)[TAB]
_ [UNDERSCORE]
^ [CARET]
~ [TILDE]
% [PERCENT]
` [GRAVE ACCENT]
# [POUND/NUMBER]

Calling Codes
101010 Request Start Call
111111 Answer Start Call
010101 Request End Call
000000 Answer End Call

International Characters (from Numeric Set)
P [CEDILLA/RING/MISC.] (ex: Ç/Å)
V [CIRCUMFLEX] (ex: Û)
W [TILDE] (ex: Ñ)
X [UMLAUT] (ex: Ö)
Y [GRAVE ACCENT] (ex: È)
Z [ACUTE ACCENT] (ex: Á)