                    SUPRA TECHNICAL SUPPORT BULLETIN 
               STATUS AND ENHANCEMENTS TO V32BIS ROM (1.2J/H)
                              9/16/92

Supra Corporation
7101 Supra Drive SW, Albany, OR  97321
General (503) 967-2400 / Sales (503) 967-2410 / Fax (503) 967-2401
Supra Tech Support  (503) 967-2440  8:00am - 5:00pm PST, M-F

Supra BBS........(503) 967-2444  24 Hours
CompuServe.......76004,565
BIX..............SupraCorp
America Online...SupraCorp2
GEnie............SupraTech
AppleLink........D2456
UseNet EMail.....supratech@supra.uucp

There are currently two new ROM sets.  One is currently revved as 1.2H 
and is being made available free to all registered users.  This is 
OPTION #1 and will be mailed out within 10 days of receipt of the order
via US Mail.  Shipment by US Mail is the only available method for OPTION #1 
and includes the following features:

        Enhances Busy Detection
        Fixes several Lock Display/Modem problems
        Improved Speed Re negotiation (Fall Back) upon bad line conditions
        Implements Fall Forward upon better line conditions
        Fixes Adaptive Answering (allows data/fax determination)
        Implements ECM  (Error Correction Mode)
                Note:  Must be supported by fax software
        Implements BFT mode (Binary File Transfer)
                Note:  Must be supported by fax/terminal software
        Fixes problem with DCD line turning off if modem configured with &C 
        &Dx and &Cx settings are respected when in fax mode
        Fixes problem connecting with some fax machines
        Added S-Register S109
        Added S-Register S110=3
        Implements Silent Answer (allows voice/fax determination) 
                Note:  Must be supported by fax software

The second ROM set is revved 1.2J and includes all of the above enhancements 
plus the Caller ID feature.  This ROM is available as OPTION #2 and will 
cost $19.95 plus $5.00 shipping.  We will accept Visa/MC or can ship it COD 
for an addition $5.00.  OPTION #2 will be shipped via UPS BLUE label which 
is second day air.  This is the only shipment method available for 
OPTION #2.

Supra will be sending an upgrade offer to all registered owners.  This offer
will be for either OPTION #1(Free ROM) which has all of the above features,
or the OPTION #2(Caller ID) for $19.95.  The following are the only other
available methods for ordering the ROMs.

1. BBS

We are currently working on the software that will allow you to order either
ROM from Supra via its BBS.  This software will also allow you to enter your
warranty card and change your warranty card on-line.  Once this is working,
it will be activated and you can immediately enter your order.  The quickest 
way to order the ROM will be via the BBS.  Until then, please do not contact
Supra to order either ROM.  This file will be updated when this method comes
on-line.  We expect it to be available by Sept. 19.  

2. CompuServe

This file contains an order form at the end which will need to be downloaded, 
filled out, and Emailed to Supra's CompuServe account(76004,565).  If the 
form is not used or filled out incorrectly it will be mailed back to the 
user.  

When uploading the form, PLEASE make sure it is in STANDARD TEXT FORMAT.  
If the form is in any other format, any information is missing or fill out 
incorrectly it will only delay shipment of your new ROMs.  

CompuServe also has a service available where you can send a file as Email,
many CIS access programs have a option to perform this for you.  This 
method will also be acceptible for sending your order form.

3. OTHER

We are currently working on the upgrade options for customers outside of the 
USA.  At this time if you are located outside of the USA it will cost an 
extra $15.00 shipping to send you the ROMs for both Option #1 and #2.  There
will also be no COD available for foreign customers.  In about a month we 
should be able to have Supra Germany send them to you for about the same 
prices as the USA customers if you are located in Europe.  As we finalize 
things we will release that information.

The above information is subject to change or modification.  

UPCOMING FEATURES AND NEW PRODUCTS:

The following features and new products are being worked on.  We do not 
have any information on upgrade costs, technical information, or product 
cost. As soon as we have the information, we will post it on our BBS.

        Internal version  -  Oct. 92
        PTT certified version  -  Q1. 93
        MNP10  -  Dec. 92 
        V23  -  Dec. 92
        Voice digitization in modem  -  Dec. 92
        Voice software
        DTMF encoding/decoding  -  Dec. 92
        
MORE IN-DEPTH INFORMATION ON 1.2J/H ENHANCEMENTS

Enhances Busy Detection
        Some people had several different problems with busy detection.  All 
        calls would return BUSY or only certain calls would return busy.  All 
        known problems have been fixed. This problem only happened to a small 
        percentage of users. 

Fixes several Lock Display/Modem problems
        The Supra v32bis modem is running several different processors and 
        tasks at one time. If the right timing sequence or events happen, 
        the modem could lockup.  The only way to fix the problem was to 
        power cycle the modem.  This problem only happened to a small 
        percentage of users. 

Improved Speed Re negotiation (Fall Back) upon bad line conditions
        The 1.2C ROM was our first ROM to implement this feature.  We have 
        continued to improve our code to better handle bad line conditions, 
        especially at connect time.   

Implements Fall Forward upon better line conditions
        Once the phone line conditions improve, the modem can initiate a step 
        up in baud.

Fixes Adaptive Answering (allows data/fax determination)
        A mode which allows the modem to connect with either a fax or a data 
        modem.  Once it makes the connection, it will return a result code 
        indicating which one it connected with.  It is then the software's 
        responsibility to route the call to the proper program.  Some "front 
        door" software for BBSs and terminal programs have this ability.  
        "Front door" software has control of the serial port and waits for an
        incoming call.  When it receives a call, it may present a prompt to 
        the user asking which program they want to run, or based upon the
        modems result code decide which program is to be run.  (Thus, it 
        functions as a call router.) The "front door" software then wakes up 
        or runs the correct program, which then takes over control of the 
        serial port and thus the modem.  When the call is ended, the program 
        quits or shuts down and lets the "front door" regain control of the 
        serial port/modem.

        AT +FCLASS=0
        AT +FAA=1 (if using class 2) or +FAE=1 (if using class 1)
        AT S0=(1-255)  or ATA

        Result Codes:  CONNECT XX if data call
        FAX if fax call

        NOTE:  This sequence must be sent before every answer

Implements ECM  (Error Correction Mode)
        Allows the fax software to resend a block of information if it is 
	not received correctly by the other modem.  This feature MUST be 
	supported by the fax software in order to be used.

Implements BFT mode (Binary File Transfer)
        Allows the user to send a file to another fax modem as if it were a 
        fax instead of a file.  This feature MUST be supported by the fax 
        software in order to be used. This allows the user to use the fax 
        software to send the file instead of using a terminal program.  

Fixes problem with DCD line turning off if modem configured with &C 
        If the modem was configured with the &C, especially during a 
        disconnect, the modem would toggle DCD line.  This problem only 
        affected a small percentage of users, generally those running BBSs 
        on the Apple II. 

&Dx and &Cx settings are respected when in fax mode
        The CCITT TR29.2 committee has not defined how the modem should 
        react to the &D and &C settings when in class 2 fax mode.  While the 
        committee has not defined this, there is a strong sentiment for 
        respecting the &D and &C settings as it is handled in class 1 and 
        when the modem is in data mode.  This also allows the modems to work 
        better under fax mode in the UNIX environment.

Fixes problem connecting with some fax machines
        The 1.2C ROMs had a few problems making connections to some fax 
        machines.  The fax machine used a slightly different tone when 
        answering.  This resulted in the two machines toning back and forth, 
        not making a connection and then eventually hang up. This problem 
        only happened to a small percentage of users. 


Added S-Register S109
        Controls speeds available for V.32bis carrier handshake, or the 
        carrier rate to negotiate error correction, if S-Register S110=3.

        Decimal Value   Explanation
                1       reserved
                2       4800 bps
                4       7200 bps
                8       9600 bps
               16      12000 bps
               32      14400 bps
               64       reserved
              128       reserved

Added S-Register S110=3

        V.32bis standard negotiates carrier speed at 4800 baud then jumps to 
        the agreed carrier speed to negotiate error correction/data 
         compression.  On noisy lines this can cause various connection 
        problems.  Supra's solution is to set S-Register S110 to 3.  This 
        causes the modems to connect at the slowest possible V.32 or V.32bis 
        speed.  Once this is done, as long as the line is clean enough, the 
        modems will up-shift to the next possible carrier rate.
        
        The slowest possible carrier speed can be limited by the use of 
        S-register S109.

NOTE:   Some modems can only up-shift a few times and then they will lose the
        connection  (especially Supra V.32 and V.32bis with ROMs < 1.2C).  
        The solution is to change S-Register S109 so that it does not need 
        to up-shift as many times.

NOTE:  This only works when the modem is originating the call.

Implements Silent Answer (allows voice/fax determination) 

        When the phone rings, the modem will start monitoring the telephone 
        line after the 2nd ring.  If it detects a fax tone, it will do one 
        of two things:  

        1.      If S-Register S0 != 0, the modem will immediately answer the 
                phone and attempt a fax connection.

        2.      If S-Register S0 = 0, the modem will quickly issue up to 9 
                RINGS messages, expecting the fax software to issue an ATA.

        This eliminates the need for a $150 voice/fax black box.

NOTE:   DO NOT plug the answering machine into the telephone jack on the back 
        of the modem.  The modem should be plugged into the answering machine. 
        This also works if a telephone is in the circuit before the 
        fax modem.

NOTE:   This mode must be supported by the fax software.

Implements Caller ID   (OPTION #2 only)

        This is a feature that is only available in some areas of the country.  
        In between the 1st and the 2nd ring, the phone company will send 
        information on who is calling you.  If you are in terminal mode and 
        had told the modem to answer on the 2rd ring, you would see:

                RING

                DATE = 0321
                TIME = 1405
                NMBR = 5039672400
                NAME = SUPRA CORPORATION

                RING

                CONNECT 19200

	NOTE: The NAME field isn't available in all areas and will not
	      be present in those cases.

        To enable CALLER ID:  

                AT#CID=1        Enables Caller ID in formatted format
                AT#CID=2        Enables Caller ID in unformatted format 
                                (ASCII printable hex numbers)
                AT#CID=0        Disables Caller ID


In addition to the enhancements and corrections noted above, Supra's new 
1.2J/H ROM release also includes modifications that were implemented in the 
previous 1.2C ROM release.  They are as follows:

%G0     disables Rate Re negotiation on V.32bis

%G1     enables Rate Re negotiation on V.32bis 
        enables Rate Re negotiation and Retrain on V.32

%E      has not changed, but if both %G1 and %E1 are set, then the modem will
        Rate Re negotiate during a Retrain.  This is also the only way the V.32 
        modem can Rate Re negotiate.

AT&F1 and AT&F2 defaults now include %G1

S-Register S110:

        0       causes connect at V.32 only
        1       enable V.32bis on V.32bis modems
        2       enable V.32bis and automatic rate re negotiation.

***************************************************************************

			COMPUSERVE ORDER FORM

STEP 1.  Download this file and edit out the above information.
STEP 2.  File out all parts of the form.  If your shipping address is 
	 different then your credit card billing address, make sure to 
   	 give us both.  Also if you are ordering OPTION #2, make sure to
	 include a UPS ship able address.  This means no PO boxes or APO's.
	 (PLEASE double check your address and credit card numbers)
STEP 3.  EMail the form to Supra Corporations account on CIS.  The account
 	 number is 76004,565.  Make sure that all information is there, we
	 will just mail the form back to you if it is incorrect.

-----------------------CUT HERE---------------------------------------------

DATE:___________    Modem Serial #:____________	   CIS #:___________

SHIP TO ADDRESS: 	   		CREDIT CARD BILLING ADDRESS:
Name						Name
Address						Address
City, STATE  ZIP				City, STATE  ZIP

Day Time Phone Number: __________	Evening Phone Number: __________

OPTION			    PART #       Price		CHOICE 
 #1 - Free ROM upgrade   50-14FX-ROM     Free	      	 _____
      (OFFER EXPIRES NOV. 30, 1992)

 #2 - Upgrade+Caller ID  50-14FX-CID	 $19.95
      Shipping	         UPS BLUE      + $ 5.00
					 ------
					 $24.95          _____
					 
      COD charge if ordering OPTION #2   
        ($24.95 + $5.00 COD charge)		         _____

      Credit Card if ordering OPTION #2  	         _____
      Visa/Master Card ONLY (NO AMEX)
 
      Credit Card Number: _______________  EXP DATE: _______
		
      Foreign Shipping Charge - $15.00			 _____

      Please rate your satisfaction with your SupraFaxModem:
      ____  Very Satisfied		
      ____  Satisfied
      ____  Dissatisfied
      ____  Very Dissatisfied

      Computer Type SupraFaxModem used on:
      ____  Mac            ____  PC/DOS    ____ Other _________
      ____  PC / Windows   ____  Amiga     
      
      Are you using: DATA ____   FAX ____

-----------------------END OF FORM------------------------------------------
