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TUCoPS :: Phreaking Cellular - Other Manufacturers :: oki900~1.txt

OKI 900 - The Complete OKI 900 Guide

   _____     ___   ____   ____      _____       _____       _____
 _|     |_  |_  | |_  _| |_  _|   _|     |_   _|     |_   _|     |_
|   ___   |   | |  / /     ||    |   ___   | |   ___   | |   ___   |
|  |   |  |   | | / /      ||    |  |   |  | |  |   |  | |  |   |  |
|  |   |  |   | |/ /       ||    |  |___|  | |  |   |  | |  |   |  |
|  |   |  |   |   /        ||    |_        | |  |   |  | |  |   |  |
|  |   |  |   |   \        ||      |____   | |  |   |  | |  |   |  |
|  |   |  |   | |\ \       ||     __    |  | |  |   |  | |  |   |  |
|  |___|  |   | | \ \      ||    |  |_ _|  | |  |___|  | |  |___|  | 
|_       _|  _| |  \ \_   _||_   |_  |_|  _| |_       _| |_       _|
  |_____|   |___| |____| |____|    |_____|     |_____|     |_____|

                 The Complete Oki 900 guide
                        by IceBerg
  Ver.0.90 (final Beta spelling will be fixed for final release)
  This File is not to be sold or distributed w/o my permission

   THIS file will be available at
   it is Dr. Who's page, and I will make sure he has ALL updates to this

WARNING:  some or all of the information given within this file
may not be legal to implement.  This means that if you use any of
this information, you also accept the consequences of your
actions.  The author accept no responsibility for your actions
nor for the accuracy in this file.  From this point you are on
your own, and if you do something illegal be prepared to pay the

NOTICE:  I am not the originator of all of this information. Some of the
information has been taken from various text files.  This guide is just a
means of placing all of the information in one place.  Since there are too
many sources to list, I am just saying thank you to all of the people who
have put out useful information on the oki 900.

     1. General Information
     2. Memory Functions
     3. Conversation Menu
     4. Main Menu
     5. 2nd Menu
     6. Admin Menu
     7. TestMode/ Good Timing Mode
     8. Program Dealer Password
     9. Service Monitor Mode
    10. Scanning
    11. Memory Break Down
    12. OKI Character Set
    13. OKI 900 modifications
    14. C-TEK
    15. Software
    16. Hardware
    17. Pin outs
    18. 8051 Programming
    19. Notes

1.General Information

     The oki 900 cellular phone is one of the if not the most
modifiable cellular telephone in the world.  It is based around
an 8051 microprocessor, and the main program is stored on a 27C512
eprom.  Oki reproduced it's popular model 900 cellular phone for
AT&T under the model AT&T 3730.  Both are identical in appearance
and in circetry.  The 900 operates off of 6 volts, either from a
ni-cad battery or one of two types of battery eliminators (see
accessories for more information).  The 900's antenna is an sma

     Sending/Receiving Calls

          To place a call directly power up the unit enter the
phone number on the keypad then press the send(snd).  You will
soon be connected to the called party.

          To place a call from a memory location, press the
recall(rcl) button then enter the memory location and press the
send(snd) button.

          To place a speed dial call, enter memory location, and
press SND

          To receive an incoming call the unit must be powered
up.  When the phone rings press the send(snd) button.

          To end the call press end.

     Adjusting the Volume

          Ring Volume: Press the up and down buttons on the side
of the phone while the phone is ringing.  The ring volume can
also be adjusted in the menu options(see second menu).

          Ear Volume: Press the up and down buttons on the side
of the phone during conversation.

          Key Volume: Press the up and down buttons on the side
of the phone any time the phone is not ringing or connected to
another party.

          Muting Ring and Key volume: Set the volume to it's
absolute lowest level (no lines).  When ring volume is muted the
display will flash letting you know you have an incoming call.

          Viewing Last Dialed Number: press RCL, *, *

          Viewing your own number:  press RCL, #

          Viewing your system ID:  press RCL, #, #

          Hook Flash:  Used for those who have call waiting
service.  When you receive a call and you are non the phone you
can press SND to switch lines and SND to switch back.

          Review Long Numbers: To display the second 16 digits of
a number that is over 16 digits RCL, RCL.

          Review Call Timer: Press RCL, #, #, #.  This timer is
only reset when the phone is powered down.

          Review Cumulative Timer: Press RCL, #, #, #, #.  This
timer can not be reset in any normal node.  

          Review Lifetime timer: Press RCL, #, #, #, #, #.  To my
current knowledge this timer can not be reset through the phone.

2. Memory Functions

     The 900 has the capability to store 200 names and numbers in
memory locations 000-199.  This is a maximum capacity of 8000
characters (8 letters and 32 digits per entry).  Memory locations
190-199 are considered secret locations, as they will not display
the name or number in that location.

     Storing Phone Numbers: Enter number, Sto, three digit memory
location (or * for net free location). NOTE: The 900 will not
automatically save to locations 190-199 by using *.

     Storing Names: Press ALPH, enter name (see below for alpha
entry), Sto, enter phone number, STO, enter 3 digit memory
location (or *).  Pressing ALPH will disengage the alpha entry

     Alpha Entry: Pressing ALPH places you in alpha entry mode. 
This allows you to enter alpha numeric digits, and a few
punctuation digits.  Pressing a key will allow you to scroll
through the alpha numeric characters for that key. So a single
press on the 1 key would display Q, a second press would display
Z, a third press would display &, and a fourth press would
display 1.  If you continue Pressing a key it will continue to
loop.  All the characters are displayed in upper cases, to change
to lower case you must press the MENU key, which will act like a
shift key.  Pressing a key other than the one first pressed will
enter the displayed digit, and move to the next cursor position
displaying the first character for the newly pressed key.  The
arrow keys on the side of the phone control the cursor
position, allowing editing and the use of multiple characters
from the same key.

     Dialing During Conversation:  To send a memory location
During a conversation, press RCL, memory location, Menu, SND.

     Storing Pauses: To store a pause in a Dialing sequence, you
need to press the END key at the position in the dial sequence
you wish the pause to occur.  The display will show a P were the
pause is.  The first pause is manual and requires you to hit
send before sending the rest of the dial string.  All pauses
after the first only pause for three seconds before proceeding.

     Substitute a location:  To replace a number currently stored
in a memory location with a new number, simply follow the above
directions for either storing numbers or storing names.  When you
enter STO, and the memory location, the 900 will prompt you if
that location is already in use.  To over write, just hit STO

     Erasing a Location:  To erase a location, press STO (do not
have a number entered before this), memory location, Sto.  The
location will be erased.

     Scrolling Memory:  To scroll through memory locations press
RCL and then use the up and down arrows to scroll through the
locations.  To start at a specific location press RCL, memory
location, and then use the arrow keys to scroll.  You can
initiate a call to the displayed location by pressing SND.

     Scrolling Names:  To scroll through the names in
alphabetical order, press ALPH, RCL (repeatedly to scroll).  Names
are only alphabetized by the first digit, and then by location
number.  To initiate a call to displayed name press SND.

     Search for Name:  Press ALPH, enter letters of the name,
RCL.  If a match is found, it will be displayed.

     Scratch Pad:  During conversation, you can enter a number
into temporary memory called the scratch pad.  To do this press
MENU during a conversation.  While entering the number keys are
muted.  Up to five numbers of 32 digits can be stored in the
scratch pad

          Remote Access:  The called party can enter numbers into
you scratch pad for you by pressing *, phone number, #.  Pressing
* again will allow a second, third fourth or fifth number to be

          NOTE: During remote entry, if the remote party
presses 0 within two second after pressing #, the 900 will end
the current call, and initiate a call to the number entered into
the scratch pad.

          Recall Scratch Pad:  To recall numbers in the scratch
pad, press RCL, *, and use the arrow keys to scroll through the
numbers in the scratch pad.  These numbers can be placed into a
normal memory location by recalling the scratch pad number then
pressing STO, and the memory location to store to (or *).

     Roam Numbers:  Up to 30 roam numbers can be entered separate
from standard memory locations.  To do this press ALPH, STO,
number, STO, Name, STO.  To review press RCL, *, *, *, *, and use
arrow keys to scroll.  To erase a roam number, recall the desired
roam number, press STO, STO.

3. Conversation Menu

     The conversation menu can be accessed by pressing the menu
button During conversation.
You can then scroll through the menu options by pressing menu
repeatedly, or by using the arrow keys

     Silent Pad/ Scratch Pad: First option in the conversation
menu.  Allows the silent entry of digits into the phone during
conversation (see scratch pad above).

     Mic Mute:  The second option in the conversation menu. 
Mutes the microphone during conversation, allowing you to hear
the called party, but they are unable to hear you.

     Battery:  To view the power level of the battery during

4. Main Menu

     The main menu is accessed by pressing the menu button once while the phone 
is not in use.  Then you can use the arrow keys
to scroll through the menu options.

     One Step Dialing:  allows instant Dialing of memory
locations 0 through 9 by pressing Menu then the one digit memory
location.  There is no need to hit send with this option.

     Battery Meter:  Displays the remaining battery power.

     Users Manual:  Press RCL to initiate, and rcl to scroll
through the list of instructions.

     Lock Phone:  Pressing 0 and your lock code will lock the
phone.  When the phone is locked the only thing the phone will
accept are the unlock code, or a 911 call.

     Auto Answer Modes:

          Voice Mode:  In this mode your phone will automatically
answer it's self.  This allows you ease of use in places like a
car were you need to concentrate on driving and not pressing
buttons on your phone.  To deactivate return to Main Menu and 
turn off auto answer mode.

          Absence Mode: In this mode your phone will answer up to
9 times allowing the calling party to enter their phone number. 
After the ninth call the 900 will only log the number of missed
calls.  You will be prompted for the number of rings to answer
on (1-4).  Using this mode allows you to use the power button to
start the 'Auto Power Off Timer'.  The timer will keep the phone
in Absence mode for 5 hours before powering down.  When someone
calls, the 900 will answer and the caller will hear 3 tones
(similar to a pager).  After the tone the caller has the
following options:
          Enter Phone Number then #
          Enter Memory Location (if exists) then #
          Enter *, Phone Number then #
          Enter *, Memory location then #
If the caller pauses for 15 seconds, the 900 will erase all
currently entered digits.  To deactivate follow the same
directions as in Voice Mode above.

          Reviewing Absence Calls:  Press RCL, *, *, *.  The
display shows the total number of messages received followed by '
To Scroll Press ' and the symbols for the up and down arrows. 
You can then scroll through the messages.  You can initiate a
call to any of the numbers displayed by hitting SND.

     Remote Locking:  You can lock your phone remotely while the
phone is in Voice or Absence modes.  To do this call your phone,
when the call is answered press *, then # within 2 seconds, then
enter the lock code, you will hear a tone, press 5 to lock the

     Remote Disable Auto Answer:  Call the 900, when it answers
press *, # within 2 seconds after *, enter unlock code, 2.

     Credit Card Calling:  Automatically uses your programmed card
information (see Admin menu) to place calls to numbers 10 digits
in length or more.  The 900 will automatically insert o in front
of the number.  After you press send you will hear  tone you can
then press send again to initiate the card calling routine.

5. Second Menu

     To access this menu press menu, and scroll through till you
see 2nd Menu and press RCL

     Back-light Mode:  Press RCL to scroll through the available
options and leave it on the desired option.

     Ring Adjust:  Press STO to cycle through the available
tones, and use the arrows to adjust ring volume.  Press menu to

     Auto Redial:  Once you have reached this feature, press RCL
to scroll through it's options.  When active you can dial a
number and if it is busy you do not need to press end the phone
will end the call it's self, and dial back in the selected amount
of time.

     Display:  This option allows you to select how names and
numbers from memory will be displayed.  Press STO to save the

     One Minuet Beep:  This option sets the 900 to beep after the
first 50 seconds of conversation, and each additional minuet
after.  The party on the other end does not hear the beeps.

     Auto Lock:  Puts the phone into locked mode every time it is
powered up.

     Vacant Address:  Search for available vacant addresses.  STO
can be used to store the number previously entered into the
displayed location.

     Alert Tones:  RCL will scroll through the options, press STO
to select.  Service Area Tone On will emit one long tone when
entering a service area.

6. Admin Menu

     To access the Admin Menu press Menu, and scroll to the Admin
selection, press recall and the 6 digit security code (provided by
the dealer).

     NAM Select:  Your Oki 900 allows you to select between up to 5 individual 
phone numbers.  This can be so you can have service
through multiple providers.  You can manual select witch nam to
use or place it on auto name.  I am not sure if auto will select
the first available name, or if it will select the nam to which
the signal is strongest or what.

     Carrier Select:  Lets you select the carrier of your choice:
          Sys Prefer B: phone uses B (wierline) carrier if
available or A (non wierline) if B is not available
          Sys Prefer A: phone uses A carrier if available or B if
A is not available
          Sys A only: Will only use A type carriers
          Sys B only: Will only use B type carriers
          Home Only: Phone will only use it's home system
          Only SID: Phone will only use the system ID entered.

     Card Calling: This option allows programming for the
automatic card billing in the main menu.  When the 900 prompts
you for the OCC, it is wanting the phone number to dial to use
your credit card or calling card.  Press STo and it will want the
card number, press store again and you are done.

     Restrict Calls:  This is a 4 digit code that defines the
types of calls allowed.

          0000 is default with no restrictions.

          First digit - incoming calls
          0 No restriction
          1 Restricted

          Second Digit - Access to memory locations
          0 No restriction
          1 Storage restricted all locations readable
          2 Storage restricted read only locations 0-9
          3 Restricted

          Third Digit - Manually dialed calls
          0 No restriction
          1 11 digits or less 
          2 10 digits or less, toll free and credit/calling card
calls only
          3 7 digits or less, toll free credit/calling card calls
          4 911 only

          Fourth Digit - Operator Access
          0 No restriction
          1 Restricted

     Programming Lock Code:  This feature will show you the unlock
code, and allow you to change it.  Lock codes can be 1-8
alpha/numeric digits excluding symbols.

7. TestMode/Good Timing Mode

Power the phone up.  Wait for Power On msg.  Hit 7 and 9 together.
Then hit Menu, Snd, End, Rcl, Sto, Clr.  Phone says good timing!
TestMode is now enabled, but phone works normally.  Hit 1 and 3
together to halt phone and enter debugger.  Everything on display
lights up.  Hit Clr, till you get status display.

Now you can execute commands listed below.  For example to reboot
enter #, 0, 2, Snd.  Commands all start with # and end with Snd. 
take arguments.

You can use #25, to display memory in EEPROM, and I think once in
that command you can hit # and * to go up and down in memory, Clr
exit.  Hex chars are entered as "*n", like *1=A, *2=B, etc.

SUSPEND     #01         Performs Initialization
RESTART     #02         Terminates the test mode
STATUS      #03         Shows current status of TRU
RESET       #04         Resets the autonomous timer
TURNAROUND  #05    ?    Returns Data Bytes following command to
the Test Set.
INIT        #06         Initialize the TRU to following states:
                         Carrier Off, Attenuation - 0db, Receive
Audio Muted
                         Transmit Audio Muted, Signaling tone
                         Autonomous timer reset, SAT off, and
DTMF off
CARRIER ON  #07         Turns the carrier on
CARRIER OFF #08         Turns the carrier off
LOAD SYNTH  #09XXXX     Sets the synthesizer to channel XXXX
SET ATTN    #10X        Set the RF power attenuation to X
                         0=0db, 7=-28 db (in steps of -4db thru
RXMUTE      #11         Mutes the receive audio
RXUNMUTE    #12         Unmutes the receive audio
TXMUTE      #13         Mutes the transmit audio
TXUNMUTE    #14         Unmutes the transmit audio
RESETOFF    #15         Discontinues resetting of autonomous
STON        #16         Transmits a continuous signaling tone
STOFF       #17         Stops transmission of signaling tone
SETUP       #18         Transmits a 5 word RCC message (fixed
text pattern)
VOICE       #19         Transmits a 2 word (RCC) RVC message
(fixed test pattern)
RCVSU       #20         Receives a 2 word FCC message (cancel
with 0x38)
RCVVC       #21         Receives a 1 word (FCC) FVC message
(cancel with 0x38)
SEND-NAM    #22         Returns the information contained in the
VERSION     #23
SEND-SN     #24
MEM         #25XXXX     Displays the resident memory data at XX
                                  00XX=in micro, XXXX=EEPROM
WSTS        #28         Count 1 word messages on CC, until
WSTV        #29         Count 1 word messages on VC, until
SATON       #32X        Enable the transmission of SAT X
                         0= 5970 Hz, 1=6000 Hz, 2=6030 Hz
SATOFF      #33         Disables the transmission of SAT
CDATA       #34<60>     Transmits 5 word RCC message (30 bytes)
HITNON      #35         Activates the 1150Hz tone to receive
audio line
HITNOFF     #36         Deactivates the 1150Hz tone
LOTNON      #37         Activates the 770Hz tone to receive audio
LOTNOFF     #38         Deactivates the 770Hz tone
DTMFON      #42XX       Enable the transmission of DTMF frequency
DTMFOFF     #43         Disable the transmission of DTMF
?           #44
?           #45
?           #46
?           #47
?           #48
?           #51
-           #52<xx>

?           #53
-           #54XXXXZZ   Write HEX (ZZ) into ADDRESS $XXXX
                        if 00XXZZ then store #$YY in MicoRAM $XX
-           #56         Return Value stored in $BEBB
?           #60
?           #62
?           #63
RCVSU       #64         Receives a 2 word FCC message (duplicate
of cmd #20)
COMP-ON     #65         Enable the compressor and expander
COMP-OFF    #66         Disable the compressor and expander
setvol      #67         X-Set volume (0-7) 0=max
SERIAL I/O  #683XX?     Mutes/Unmute Tx/Rx Audio Signal Enable
                        Disable the Compressor/Expander,
XX=commanded states.
                            CMD Compress Tx Mute Rx Mute
                            --- -------- ------- -------
                            40  on       unmuted unmuted
                            41  off      unmuted unmuted
                            42  on       muted   unmuted
                            43  off      muted   unmuted
                            44  on       unmuted muted
                            45  off      unmuted muted
                            46  on       muted   muted
                            47  off      muted   muted
?           #72          [pulls something, outputs 1 word!?!]
?           #73<arg>  (DO NOT try this on a 4003 chip)

                      Scans channels,...

                       #73 XXXX xxxx YY

                        XXXX = Start channels scan
                        xxxx = End   channels
                         yy  = Time
?           #74
-           #75         Enable Handsfree (disable spkr)
-           #76         Disable Handsfree (enable spkr)
-           #77         Turns on Loudspeaker near mic
-           #79
?           #80
?           #81
?           #84
?           #85

8. Program Dealer Password

     1. Press <Rcl> and <Menu> simultaneously immediately after
powering on.

     2. The back-door password for ALL OKI 900 telephones is
   Oki ALSO RECOMMENDS "4836622666" or "*12345678#" or

     3. Press <Sto> to enter the password into memory again.

9. Service Monitor Mode Programming Sequence:

     This is an especially important thing to know... Usually
when a Cellular Company wants to find you what they do is vector
in on you by switching the cellular towers you are on three or
four times in a row and then take the signal strength of all of
the towers to locate you to within a 500 square foot radius...
comprehend??? So in order to better save your ass the OKI has a
built-in Service Monitor Mode... To access this mode do the
following any time when the Phone in Powered ON...

1. Any time during normal telephone operation you can put the
phone into service monitor mode by pressing both the <Rcl> and
<Menu> Keys at the same time and then typing in the sequence....
* T E S T M O D E # then the screen will flash "Service
Monitor"... The first two digits on top are the signal strength
in Hex... the last four digits on the bottom are the channel you
are on... the others are just diagnostic info crap... Whenever
your channels change more than three or four times in 30 seconds 
it is time to turn off the phone. 

10. Cellular Scanning Programming Sequence:

     1. Put the phone into DEBUG Mode.
     2. Use command #12 followed by <Snd> to unmute the receive
     3. The Type in command #73AAAABBBBCC followed by <Snd>.
	AAAA = 4 digit low channel number (Channel to begin scan on)
	BBBB = 4 digit high channel (Cell Channel to end scan on)
	  CC = 2 digit number for how many seconds to scan each
     4. Next the phones screen will display 4 digits... the
current channel it is scanning.... the # button pauses and unpauses and the *
button restarts the scan from the low channel during the scan.

However, do not try this if you have a 4003 chip, it has a tendency to lock
the phone up requiring you to remove the chip to reset the phone.

11. Memory Break Down
  Here is the break down of the Oki 900 phone.  

	$0000-$FFFF (64K) - Software PROM 
	$0000-$00FF (256) - Micro Internal Memory
	$7000-$70FF (256) - Glue Logic 
	$A000-$BFFF (8K)  - EEPROM
	$C000-$C0FF (256) - Extended RAM
	$D000-$D0FF (256) - Screen Memory

$0000-$FFFF (64K)  - Software PROM 

     This is the software of the phone.  The software controls the
phone.  This is where one will need to change the code to allow for
the ESN to be changed.  The ROM version covered here is the 4701.
The 4003 is not covered.                        

Common LCALLS in the Oki 900

   Here is a small list of some of the more common lcalls that are 
used in the Oki 900.  This may or may not help, but here they are:

lcall $04c2   - Sets $D0-$D1 and $A0-$A1 to $78 (there is a good reason)
lcall $0542   - Fixes NAMs if needed, check summ
lcall $055a   - Sets up security code via ESN, hex to dec conversion
lcall $0723   - Clr A Set Of Locations to X00, X=R2, DPTR point to first
lcall $072d   - Clears custom power on message BEAF to BEB6
lcall $073d   - ESN chksumm   
lcall $07e6   - Will reset the NAM if something happens to it
lcall $13d4   - ACC.6 to C and lcall $2fe1   Write to screen direct....
lcall $152c   - Display on screen (calls $2fe1 along the way)
lcall $1549   - $7A to A and ACC.6 to C
lcall $1638   - Gets key from keyboard and wonders if it is clear
lcall $2722   - Mov DPTR, #$bec2 ESN working storage location mov R7, #04h
lcall $274f   - Reads from BED1 BED2
lcall $2e59   - Puts DPTR to R5 and R6 (DPH to R5,  DPL to R6)
lcall $2e5e   - Puts R5 and R6 to DPTR (R5 to DPH, R6 to DPL)
lcall $2f17   - 22->A, 8->R7, JMP to write to screen ($2fe1)
lcall $2f4e   - lcall 3016, A->R7, 10->A, Screen Write, etc...
lcall $2fb3   - A->R0, 39->A, Alcall N2fb3F0, CJNE A on F0 to B2fbc 
		(R0->A, F0->A, scr write) $2fe1
lcall $2fc3   - A->R7, 10->A, jmp to Screen Write ($2fe1)
lcall $2fd2   - A->R7, A->@C087, CLR A, JMP to Screen write ($2fe1)
lcall $2fe3   - The REAL screen write!!
lcall $2ffb   - Write A to @DPTR, for EEPROM (ATMEL 28C64)
lcall $3042   - Adjusts on over load!
lcall $305e   - Change channel
lcall $3110   - adds 40h (64d) to name address used for NAM pulls
lcall $31f5   - Point to the correct location of the NAM selected
lcall $3265   - Goto current NAM location and Read it out
lcall $347a   - Clr #$7f, Lets just save one byte
lcall $347d   - Resets the autonomous timer
lcall $34a7   - Enable Handsfree
lcall $34b0   - Disable Handsfree (enable Spkr)
lcall $3546   - Mutes the receive audio
lcall $354a   - Unmutes the receive audio
lcall $3552   - Unmutes the transmit audio
lcall $3797   - Setup for call
lcall $3834   - Checks if key is pressed
lcall $3887   - Gets and Decodes a Control Channel Message
lcall $38e6   - Get FCC message
lcall $3939   - Decode FCC Message
lcall $5b5e   - Inc DPTR, with DPL inc to only thru $00-$29 and $2b-$3e
lcall $5b5e   - Inc DPTR, with DPL inc to only thru $00-$29 and $2b-$3e
lcall $5d84   - NAM Checksum byte correction
lcall $34b6   - Turns on Loudspeaker near mic (Used in Debug #77)
lcall $37cf   - Enable the compressor and expander (Used in Debug #65)
lcall $37d6   - Disable the compressor and expander (Used in Debug #66)
lcall $34c6   - Turns the carrier off (Used in Debug #08)
lcall $3741   - Transmits a continuous signaling tone (Used in Debug #16)
lcall $354e   - Mutes the transmit audio (Used in Debug #13)

Misc. Locations in the Oki 900 Software.

$0000    Starting entrie
$00b1    Read in all data, if not zero, die error number 2
$00c8    RAM Check Summ, if not zero after being deced, error number 3
$00cb    RAM Check Summ loop label  
$00dd    Makes the call to the ESN check summ ($073d) better return a zero
	 Error number 4
$00e7    Call setup  
$0102    Reset phone
$012e    Reads out what NAM that the phone is set on
$0136    Check Summ for External RAM, fail error number 3
$0144    Read NAM out abd write into memory
$0501    Setup for Security code (hex to dec conversion)
$055a    HEX to Decminal converter
$055b    HEX to Dec conversion looper var ent point
$0573    Turn off write protect (lcall)
$057a    Turn on write protect (lcall)
$0581    Default NAM info, done on reset of phone  ($0102) Data
$05c4    Write default NAMs Start from data at $0581
$0723    Clr A Set Of Locations to X00, X=R2, DPTR point to first location
$072d    Clears  customized power on message 
$0732    Clear power on message loop var (Places spaces in the phone)
$073d    Loads Encrypted ESN Locations  (ESN Check Summ)
$0766    Decodes Encrypted ESN          (ESN Check Summ)
$077a    ESN Check Summ                 (ESN Check Summ)
$07dc    The Check Summ part of the NAM check summ
$07e6    Will Reset the NAM if something happens to it *** START
$07ed    Write loop for NAM write (called from $0581)
$09b1    This is the START of debug!!!!
$0b51    Debug indirect jump
$140e    Data for key test  (DATA)
$1638    This function is used to read a key from the keypad
	 more over the CLR key
$16d5    Address table for debug  (DATA)
$2722    Loads ESN working storage location with ESN
$2f55    Call from debug command #74
$34a7    Enable Hands free 
$34b0    Disable Handsfree (enable Speaker)
$354a    Unmutes the receive audio     
$3741    Transmits a continuous signaling tone 
$385f    From C3834: this is the debug command number #20
$4a74    Setup for customized power on message
$5bb8    200 memory location control
$5bd6    200 memory location address for indirect moves (DATA)

$0000-$00FF (256) - Micro Internal Memory

     The internal memory contains the function registers.  When one wants 
to use the use a register, TASM does not have the lables for one to use. 
One can access the register direct.  Here is the addresses one will need 
to use. 

	IOCON           $FF-$F8
	B               $F7-$F0
	ACC             $E7-$E0
	PSW             $D7-$D0
	TH2             $CD
	TL2             $CC
	RCAP2H          $CB
	RCAP2L          $CA
	T2CON           $CF-$C8
	IP              $BF-$B8
	P3              $B7-$B0
	IE              $AF-$A8
	P2              $A7-$A0
	SBUF            $99
	SCON            $9F-$98
	P1              $97-$90
	TH1             $8D
	TH0             $8C
	TL1             $8B
	TL0             $8A
	TMOD            $89
	TCON            $8F-$88
	PCON            $87
	DP              $83
	DPL             $82
	SP              $81
	P0              $87-$80

  The Stack is specified by stack pointer ($81). 

			Stack Storage Layout

  Stack Processing    Stack Pointer     7    6    5    4    3    2    1    0

   Before Execution         $7F         D7   D6   D5   D4   D3   D2   D1   D0
   Interrupt Process        $80         PC7  PC6  PC5  PC4  PC3  PC2  PC1  PC0
		    	             $81         PC15 PC14 PC13 PC12 PC11 PC10 PC9  PC8
   PUSH process (ACC)       $82         A7   A6   A5   A4   A3   A2   A1   A0
   POP process (ACC)        $82         A7   A6   A5   A4   A3   A2   A1   A0
   RETI process (pop PC)    $81         PC15 PC14 PC13 PC12 PC11 PC10 PC9  PC8
			             $80         PC7  PC6  PC5  PC4  PC3  PC2  PC1  PC0
   After Execution          $7F         D7   D6   D5   D4   D3   D2   D1   D0

$7000-$70FF (256) - Glue Logic 

   Glue Logic is the decoder which controls various functions of the 
Oki 900.  The NAM locations are under a write protect.  The write protect is
controlled via the $7005 location.  Here is some sample code  showing how
one uses the $7005 write protect.

Turn Off EEPROM Write Protect  -  $01 into $7005

	mov a, #$01               ; Load a $01 into A
	mov dptr, #$7005          ; Load the value $7005 into DPTR
	movx @dptr, a             ; Move A ($01) into the location at DPTR
				           ; which is $7001

Turn On EEPROM Write Protect   -  $00 into $7005

	mov a, #$00               ; Load a $00 into A
	mov dptr, #$7005          ; Load the value $7005 into DPTR
	movx @dptr, a             ; Move A ($01) into the location at DPTR
				           ; which is $7001

$C000-$C0FF (256) - Extended RAM

	C0F4-C0FE   Current NAM Information (Sid, MIN1/2, ICMP, OCL, GIM)
	C0FF        Current NAM Selected (0=AutoNAM)

$D000-$D0FF (256) - Screen Memory
	 This is the LCD memory locations.

$A000-$BFFF (8K)  - EEPROM Memory locations

    The EEPROM contains the ESN, NAM, passwords and other data that
may need to be changed.                             
    The ESN contains two locations.  The main location is the encrypted
and CAN NO BE CHANGED unless one jumpers the 28C64 EEPROM write protect.
(Order the databook by calling Atmel at 408-441-0311) To jumper the 
EEPROM one can place a low on NOT WE (Write enable, Pin 27), NOT CE
(Chip Enable, 20) and a high on OE (Output Enable, pin 22).  While 
writing each byte, the NOT WE and CE should cycle, the OE NEEDS to be
    The other ESN location is the working storage location, the is written
over each time the phone is turned on.   One can make a two byte crack 
on the binary to change the ESN on the phone. Looking at $0788 in the 
Oki PROM, you will see #$90 #$BE #$C2 (#$78 #$60 #$79, extra opcodes are
added to help find the location in question). #$90 #$BE #$CE could be 
changed to #$90 #$FF #$F0, and you be able to change the ESN by 
using debug command #54 to poke the ESN to $BEC2 thru $BEC5

200 Memory location Table Starts at $9F4E in the PROM.  The addresses 
are of the names, NOT the numbers please note that the numbers 
come before the names in the locations this starting at B000.  

  | Addr  Memory Location Number  | Addr  Memory Location Number|
  | B010  Memory location #1      | B029  Memory location #2    |
  | B044  Memory location #3      | B05D  Memory location #4    |
  | B078  Memory location #5      | B091  Memory location #6    |
  | B0AC  Memory location #7      | B0C5  Memory location #8    |
  | B0DE  Memory location #9      | B0F9  Memory location #10   |
  | B112  Memory location #11     | B12D  Memory location #12   |
  | B146  Memory location #13     | B15F  Memory location #14   |
  | B17A  Memory location #15     | B193  Memory location #16   |
  | B1AE  Memory location #17     | B1C7  Memory location #18   |
  | B1E0  Memory location #19     | B1FB  Memory location #20   |
  | B214  Memory location #21     | B22F  Memory location #22   |
  | B248  Memory location #23     | B261  Memory location #24   |
  | B27C  Memory location #25     | B295  Memory location #26   |
  | B2B0  Memory location #27     | B2C9  Memory location #28   |
  | B2E2  Memory location #29     | B2FD  Memory location #30   |
  | B316  Memory location #31     | B331  Memory location #32   |
  | B34A  Memory location #33     | B363  Memory location #34   |
  | B37E  Memory location #35     | B397  Memory location #36   |
  | B3B2  Memory location #37     | B3CB  Memory location #38   |
  | B3E4  Memory location #39     | B3FF  Memory location #40   |
  | B418  Memory location #41     | B433  Memory location #42   |
  | B44C  Memory location #43     | B465  Memory location #44   |
  | B480  Memory location #45     | B499  Memory location #46   |
  | B4B4  Memory location #47     | B4CD  Memory location #48   |
  | B4E6  Memory location #49     | B501  Memory location #50   |
  | B51A  Memory location #51     | B535  Memory location #52   |
  | B54E  Memory location #53     | B567  Memory location #54   |
  | B582  Memory location #55     | B59B  Memory location #56   |
  | B5B6  Memory location #57     | B5CF  Memory location #58   |
  | B5E8  Memory location #59     | B603  Memory location #60   |
  | B61C  Memory location #61     | B637  Memory location #62   |
  | B650  Memory location #63     | B669  Memory location #64   |
  | B684  Memory location #65     | B69D  Memory location #66   |
  | B6B8  Memory location #67     | B6D1  Memory location #68   |
  | B6EC  Memory location #69     | B705  Memory location #70   |
  | B71E  Memory location #71     | B739  Memory location #72   |
  | B752  Memory location #73     | B76D  Memory location #74   |
  | B786  Memory location #75     | B79F  Memory location #76   |
  | B7BA  Memory location #77     | B7D3  Memory location #78   |
  | B7EE  Memory location #79     | B807  Memory location #80   |
  | B820  Memory location #81     | B83B  Memory location #82   |
  | B854  Memory location #83     | B86F  Memory location #84   |
  | B888  Memory location #85     | B8A1  Memory location #86   |
  | B8BC  Memory location #87     | B8D5  Memory location #88   |
  | B8F0  Memory location #89     | B909  Memory location #90   |
  | B922  Memory location #91     | B93D  Memory location #92   |
  | B956  Memory location #93     | B971  Memory location #94   |
  | B98A  Memory location #95     | B9A3  Memory location #96   |
  | B9BE  Memory location #97     | B9D7  Memory location #98   |
  | B9F2  Memory location #99     | BA0B  Memory location #100  |
  | A010  Memory location #101    | A029  Memory location #102  |
  | A044  Memory location #103    | A05D  Memory location #104  |
  | A078  Memory location #105    | A091  Memory location #106  |
  | A0AC  Memory location #107    | A0C5  Memory location #108  |
  | A0DE  Memory location #109    | A0F9  Memory location #110  |
  | A112  Memory location #111    | A12D  Memory location #112  |
  | A146  Memory location #113    | A15F  Memory location #114  |
  | A17A  Memory location #115    | A193  Memory location #116  |
  | A1AE  Memory location #117    | A1C7  Memory location #118  |
  | A1E0  Memory location #119    | A1FB  Memory location #120  |
  | A214  Memory location #121    | A22F  Memory location #122  |
  | A248  Memory location #123    | A261  Memory location #124  |
  | A27C  Memory location #125    | A295  Memory location #126  |
  | A2B0  Memory location #127    | A2C9  Memory location #128  |
  | A2E2  Memory location #129    | A2FD  Memory location #130  |
  | A316  Memory location #131    | A331  Memory location #132  |
  | A34A  Memory location #133    | A363  Memory location #134  |
  | A37E  Memory location #135    | A397  Memory location #136  |
  | A3B2  Memory location #137    | A3CB  Memory location #138  |
  | A3E4  Memory location #139    | A3FF  Memory location #140  |
  | A418  Memory location #141    | A433  Memory location #142  |
  | A44C  Memory location #143    | A465  Memory location #144  |
  | A480  Memory location #145    | A499  Memory location #146  |
  | A4B4  Memory location #147    | A4CD  Memory location #148  |
  | A4E6  Memory location #149    | A501  Memory location #150  |
  | A51A  Memory location #151    | A535  Memory location #152  |
  | A54E  Memory location #153    | A567  Memory location #154  |
  | A582  Memory location #155    | A59B  Memory location #156  |
  | A5B6  Memory location #157    | A5CF  Memory location #158  |
  | A5E8  Memory location #159    | A603  Memory location #160  |
  | A61C  Memory location #161    | A637  Memory location #162  |
  | A650  Memory location #163    | A669  Memory location #164  |
  | A684  Memory location #165    | A69D  Memory location #166  |
  | A6B8  Memory location #167    | A6D1  Memory location #168  |
  | A6EC  Memory location #169    | A705  Memory location #170  |
  | A71E  Memory location #171    | A739  Memory location #172  |
  | A752  Memory location #173    | A76D  Memory location #174  |
  | A786  Memory location #175    | A79F  Memory location #176  |
  | A7BA  Memory location #177    | A7D3  Memory location #178  |
  | A7EE  Memory location #179    | A807  Memory location #180  |
  | A820  Memory location #181    | A83B  Memory location #182  |
  | A854  Memory location #183    | A86F  Memory location #184  |
  | A888  Memory location #185    | A8A1  Memory location #186  |
  | A8BC  Memory location #187    | A8D5  Memory location #188  |
  | A8F0  Memory location #189    | A909  Memory location #190  |
  | A922  Memory location #191    | A93D  Memory location #192  |
  | A956  Memory location #193    | A971  Memory location #194  |
  | A98A  Memory location #195    | A9A3  Memory location #196  |
  | A9BE  Memory location #197    | A9D7  Memory location #198  |
  | A9F2  Memory location #199    | AA0B  Memory location #200  |

NAM Storage in the EEPROM:
       SID-------  min1/min2-------------------  IPCH------  OLC-  GIM-
NAM1 - A02B  A06B  A0AB  A0EB  A12B  A16B  A1AB  A1EB  A22B  A26B  A2AB
NAM2 - A2EB  A32B  A36B  A3AB  A3EB  A42B  A46B  A4AB  A4EB  A52B  A56B 
NAM3 - A5AB  A5EB  A62B  A66B  A6AB  A6EB  A72B  A76B  A7AB  A7EB  A82B
NAM4 - A86B  A8AB  A8EB  A92B  A96B  A9AB  A9EB  AA2B  AA6B  AAAB  

A6AA        Used with Encrypted ESN 
A72A        Used with Encrypted ESN 
A3EA        Used with Encrypted ESN
A16A        Used with Encrypted ESN
A2AA        Used with Encrypted ESN
A22A        Used with Encrypted ESN 
BBAC-BE73   30 roamer access memories 
BE03        Index of NAM in use
BEAF-BEB6   Customized power on message (8 bytes)
BEBE-BEC1   "AEIO" signature sent to cell 
BEC2-BEC5   ESN  working storage location 
BF2C        Index of NAM in use
BF2D        Even/odd SID (0 or 1)   
BF60-BF63   Keyboard unlock code digits 
BF71        Version number of display cpu rom
BF74        Lighting mode control byte (0=7sec, 1=off, 2=on)

   Debug command
   Here is a list of some of the debug commands for the Oki 900.  Along with
the list of debug commands are the address in the 4701 binary.
The table for the indirect jump starts at $16D5.  The indirect jump for
the debug mode is at $0b51.
   Note, if the address is $14e3, the debug command does not exist.

 Addr   Number       Use 
 ----   ------       ---
 $14e3   #00
 $0b81   #01         Performs Initialization
 $0000   #02         Terminates the test mode
 $0b97   #03         Shows current status of TRU
 $0bd0   #04         Resets the autonomous timer
 $0b70   #05         Returns Data Bytes following command
		     to the Test Set.
 $0b81   #06         Initialize the TRU to following states:
		     Carrier Off, Attenuation - 0db,
		     Receive Audio Muted Transmit Audio Muted,
		     Signaling tone off,
		     Autonomous timer reset,
		     SAT off, and DTMF off
 $0bdf   #07         Turns the carrier on
 $0bf8   #08         Turns the carrier off
 $0bfe   #09XXXX     Sets the synthesizer to channel XXXX
 $0c34   #10X        Set the RF power attenuation to X
		     0=0db, 7=-28 db
		     (in steps of -4db thru 7)
 $0c46   #11         Mutes the receive audio
 $0c4c   #12         Unmutes the receive audio
 $0c52   #13         Mutes the transmit audio
 $0c58   #14         Unmutes the transmit audio
 $0bda   #15         Discontinues resetting of autonomous timer
 $0c5e   #16         Transmits a continuous signaling tone
 $0c64   #17         Stops transmission of signaling tone
 $0fbb   #18         Transmits a 5 word RCC message
		     (fixed text pattern)
 $0fe8   #19         Transmits a 2 word (RCC) RVC message
		     (fixed test pattern)
 $1009   #20         Receives a 2 word FCC message (cancel with 0x38)
 $1086   #21         Receives a 1 word (FCC) FVC message
		     (cancel with 0x38)
 $0e3d   #22         Returns the information contained in the NAM
 $0f03   #23
 $0edd   #24
 $0dad   #25XXXX     Displays the resident memory data at XX
		     00XX=in micro, XXXX=EEPROM
 $14e3   #26
 $14e3   #27
 $0f2c   #28         Count 1 word messages on CC, until TERMINATE
 $0f61   #29         Count 1 word messages on VC, until TERMINATE
 $14e3   #30
 $14e3   #31
 $0c73   #32X        Enable the transmission of SAT X
		     0 = 5970 Hz,
		     1 = 6000 Hz,
		     2 = 6030 Hz
 $0c9d   #33         Disables the transmission of SAT
 $10a8   #34<60>     Transmits 5 word RCC message (30 bytes)
 $0cdc   #35         Activates the 1150Hz tone to receive audio line
 $0cd4   #36         Deactivates the 1150Hz tone
 $0ce0   #37         Activates the 770Hz tone to receive audio line
 $0cd4   #38         Deactivates the 770Hz tone
 $14e3   #39
 $14e3   #40
 $14e3   $41
 $0ca7   #42XX       Enable the transmission of DTMF
		           frequency XX[2]
 $0cd4   #43         Disable the transmission of DTMF
 $1286   #44
 $0cf0   #45
 $0d00   #46
 $0d06   #47
 $0eac   #48
 $14e3   #49
 $14e3   #50
 $0d7c   #51
 $0d55   #52<xx>
 $0da2   #53
 $0e27   #54XXXXZZ   Write HEX (ZZ) into ADDRESS $XXXX
 $14e3   #55
 $0e22   #56         Return Value stored in $BEBB
 $14e3   #57
 $14e3   #58
 $14e3   #59
 $10c2   #60
 $14e3   #61
 $0f91   #62
 $0fdc   #63
 $1009   #64         Receives a 2 word FCC message
		           (Please see debug command #20)
 $0ce4   #65         Enable the compressor and expander
		           Compandor is a SA 5750
		           This is a Philips Chip (800) 234-7381

 $0cea   #66         Disable the compressor and expander
 $0d31   #67         X-Set volume (0-7) 0=max
 $0d4a   #683XX      Mutes/Unmute Tx/Rx Audio Signal
		           Enable Disable the Compressor/Expander,
		           XX=commanded states.
		           CMD Compress Tx Mute Rx Mute
		           --- -------- ------- -------
          	      40  on       unmuted unmuted
		           41  off      unmuted unmuted
		           42  on       muted   unmuted
		           43  off      muted   ummuted
		           44  on       unmuted muted
		           45  off      unmuted muted
		           46  on       muted   muted
		           47  off      muted   muted
 $14e3   #69
 $14e3   #70
 $14e3   #71
 $1142   #72         Pulls, outputs 1 word
 $11ff   #73XXXXYYYYZZ  Scans Channels
		           XXXX = Starting 
		           YYYY = Ending
		           zz   = Delay
 $1305   #74         keypad test
 $0ef1   #75         Enable Handsfree (disable spkr)
 $0ef7   #76         Disable Handsfree (enable spkr)
 $0efd   #77         Turns on Loudspeaker near mic
 $14e3   #78
 $14dd   #79
 $1a42   #80
 $1962   #81
 $19c8   #82
 $182c   #83
 $1789   #84
 $18fe   #85
 $14e3   #86
 $14e3   #87
 $14e3   #88
 $14e3   #89

12. Charter set in the Oki 900

   The Oki 900 has a full charter set built in.  The charter set can
be used in the power on message.  The power on message can be programmed
by the debug command #54.  The addresses of the power on message are $BEAF
thru $BEB8.  Here is a list of the charter set, please note that all these
were guessed at, and some may be wrong.  ALL NUMBERS ARE IN HEX!

Small Katakana

A6 = a     A7 = i     A8 = u     A9 = e     AA = o     AB = ka    AC = ki
AD = ku    AE = ke    AF = ko

B0 = -


B1 = a     B2 = i     B3 = u     B4 = e     B5 = o     B6 = ka    B7 = ki
B8 = ku    B9 = ke    BA = ko    BB = sa    BC = shi   BD = su    BE = se
BF = so    C0 = fa    C1 = chi   C2 = tsu   C3 = te    C4 = to    C5 = na
C6 = ni    C7 = nu    C8 = ne    C9 = no    CA = ha    CB = hi    CC = fa
CD = he    CE = ho    CF = ma    D0 = mi    D1 = mu    D2 = me    D3 = mo
D4 = ya    D5 = yu    D6 = yo    D7 = ra    D8 = ri    D9 = ru    DA = re
DB = ro    DC = wa    A6 = o     DD = n'

DE = dakutan
DF = Small circle the no one knows the name to
FC = Yen
FA = Thousand (Japanies)
FB = Adds zero


21 = "     22 = !     23 = #     24 = $     25 = %     26 = &     27 = '
28 = (     29 = )     2A = *     2B = +     2C = ,     2D = -     2E = .
2F = /     30 = 0     31 = 1     32 = 2     33 = 3     34 = 4     35 = 5
36 = 6     37 = 7     38 = 8     39 = 9     3A = :     3B = ;     3C = <
3D = =     3E = >     3F = ?     40 = @     41 = A     42 = B     43 = C
44 = D     45 = E     46 = F     47 = G     48 = H     49 = I     4A = J
4B = K     4C = L     4D = M     4E = N     4F = O     50 = P     51 = Q
52 = R     53 = S     54 = T     55 = U     56 = V     57 = W     58 = X
59 = Y     5A = Z     5B = [     5D = ]     5E = ^     61 = a     62 = b
63 = c     64 = d     65 = e     66 = f     67 = g     68 = h     69 = i
6A = j     6B = k     6C = l     6D = m     6E = n     6F = o     70 = p
71 = q     72 = r     73 = s     74 = t     75 = u     76 = v     77 = w
78 = x     79 = y     7A = z     7B = {     7D = }     5F = _     60 = `
7C = |

SPACE = 0C, 0D, 10-20, 7E-A0

Misc. chars

01 - Right Triangle (Up)
02 - Right Triangle (Down)
05 thru 0F are random
E0 - Alpha
E1 - lower case a with two dots over it
E2 - Beta
E3 - Epsilon
E4 - Mu
E5 - Sigma
E6 - Circle with two flat sides on top
E7 - Circle with two flat sides on right hand side
E8 - Square root
E9 - To the power of -1 (1/x)
EA - i (Complex Number)
EB - To the power of x
EC - Cent
ED - Pound
EE - Lower case n with line over it
EF - o with two dot over it
F0 - L with circle
F1 - inverted image of F0
F2 - Theta
F3 - Infinity
F4 - Upper Omega
F5 - U with two dots over it
F6 - Upper Sigma
F7 - Pie
F8 - X with a line over it
F9 - Upper Mu
FE - Division

13. OKI 900 Modifications

     Several software modifications exist, below is a list and an
explanation of each.  These mods are to be burned into the 27c512 SOIC chip
inside the oki 900.  They are 150ns 28 pin soic chips.  An soic adapter
will be required, and can probably be aquiered through the same place you
got your burner, or you can contact IBP products(see below).  This chip is  
located on the same side and same board as the lcd, in the lower left hand

4701 - The original mod, holds 5 esn programmed byte by byte
4711 - Update to the 4701 (fixed bugs?)
4712 - The most popular and least buggy mod. works well with C-TEK

    Change ESN: (for all above mods)

    Press MENU 8 times, until you see ADM menu.  Press RCL and enter 123456
    Use RCL to move from one ESN to another, and STO to save your options.
    REBOOT Phone!!!!!

    Enter Debug Mode:

                 ESN Number     Address
               ESN Location #1  $BE8E-$BE91
               ESN Location #2  $BE93-$BE96
               ESN Location #3  $BE98-$BE9B
               ESN Location #4  $BE9D-$BEA0
               ESN location #5  $BEA2-$BEA5

             #54 XXXX xx
               |   |   |
               |   |  In order, one thru four bytes of ESN
               |   |
               |  Address (Location)
             The write byte debug command 

        To use the 0-9 keys, just use 0-9, to access A-F, hit STAR ("*")
      before 1-6 for A-F.  The "*" key can be thought of as a shift key.       
      If you hit the "*" twice, it will act as if you did not hit the "*"
      at all. 

      Program NAM:

         Enter RCL + MENU, *, 6, 2, 7, 2, 9, 8, 5, 4, #
         you can then use the up and down keys to scroll through the
         information and change the appropriate nam.

4715 - Newest widely available mod. Bugs? Should work with C-TEK
       This mod will allow you to use 230 ESNs and set a number of times
       each esn can be used before auto deletion.
       each nam must be programmed manually?

     These mods are available by normal means, and may illegal.  They
will void any warranty however.  I am still looking for more detailed
information on these or other mods.

     The actual microcontroler is an 8051 derivitave, and a lot of
information on programming it can be found on the Internet. 

14. C-TEK

                 Cellular Telephone Experimenters Kit

                        for the OKI-900/1150

The Cellular Telephone Experimenters Kit allows control of a cellular
telephone from a personal computer.  The Kit connects any DOS-based PC
with a serial port to an OKI-900/1150 (AT&T 3730/3760) cellular telephone.
The kit is designed for technicians, students, professionals, hobbyists,
and others interested in using, learning, repairing, and experimenting
with cellular telephone technology.

The kit consists of an interface adapter, software and manual.  The
interface adapter converts the cellular phone's proprietary interface to a
standard RS-232 interface, and allows connection of external audio signals
to the cellular phone.  The interface is not designed for data transmission
over the cellular system.

The kit includes the cellular telephone interface adapter;  a manual and a
short cellular tutorial;  four programs;  a programming library and
documentation;  and cellular related informational files.

One program is designed for testing the phone and allows a technician to
activate many of the OKIs built in test modes and functions, such as tuning
to a particular channel, activating carrier, sat, signaling tones, etc.

Another program can be used to access the phone's user features, such as
programming NAMs, or uploading, downloading and editing the phone's 200
alphanumeric telephone number memories on the PC.

A programming library object module is supplied to allow you to write your
own programs to access the phone in both normal operating mode and in test
mode.  The library contains functions such as tuning to a channel, turning
carrier/audio/sat-tones/signaling-tones on and off, reading received
signal strength, sending and receiving digital control messages, and
sending and decoding DTMF tones.

Two programs are supplied in source form that give examples of writing
applications in either of these modes.  One of these programs shows how the
PC can completely control the cellular phone, making and receiving calls
while the phone is only operating in its test mode, with the PC handling
all of the cellular protocol and messaging functions.  The other program
simply controls the phone by simulating presses on its keypad from the PC.

All code and libraries were compiled using Borland Turbo C 2.0 running
under DOS.  We are not supporting any other systems at this time.
The software does not change or modify ESNs.

SOMEONE! start cloning these at a DECENT price! under $150.00!
If no one pays more, the price will have to drop!

15. Software

CIA-SCAN  fvoc and dtmf display via c-tek (does more)
Various other c-tek applications exist, mail me your list, and the files
and I will include them.

Scan1c:  This appears to be an update to CIA SCAN.  I has a graph of
signal strengths and most of the same features as CIA but with better
controle, and can scan both forward, and backwards.

Please let me know of any additional Software you find for the OKI

16. HardWare

     Other hardware available listed here:

From OKI:
Executive kit- Hands free kit boosts power to 3 watts
Data Kit- Connect oki to a computer
Eliminators- use the phone with out a battery

Other places:
PCMCIA to OKI cables
OKI to RJ11 modem cables
Conditioning chargers

IBP Products can be reached at the following:

IBP Products
2106 Barth Ave.
Indianapolis IN  46203

17. Pin outs

  5 10
  4 9
  3 8
  2 7
  1 6

1  Raw data                       power +
2  PRTSENS  ???                   portable sensitivy
3  CU - 2 - L                     CU to L Data
4  POW - ON (power on)
5  TX Voice
6  TX Voice                       Power -
7  CLK                            clock
8  L2CU                           L to CU data
9  RX Voice                       Ground
10 RX Voice                       R Voice

18. 8051 Programming

     Since there is to much information on programming the 8051 series of
microprocessors to cover here I am going to give a list of places to get
more information.         various 8051 pd software   various 8051 pd software       various 8051 pd software                  keil 8051 software demo


     I can be reached at
     For all your OKI supplies contact IBP products
     contact POTI or myself for a catalog.

     Please be kind with your critiqs and make sure you have evidence to
     back anything you send to me as a correction.

Finally I would like to say thanks to #cellular!  Hay guys!
Special Greets:

Dr Who

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