USING YOUR SUPRAFAXMODEM ROM UPGRADE 1.2J/H The 1.2J/H ROM upgrade provides several sophisticated enhancements to your SupraFAXModem. These instructions explain how to use those enhancements. RATE RENEGOTIATION Several commands and S registers combine to provide improved rate renegotiation on your SupraFAXModem: %G0 Disable rate renegotiation on V.32bis. %G1 Enable rate renegotiation on V.32bis, and enable rate renegotiation with retrain on V.32. %E Has not changed, but if both %G1 and %E1 are set, then the modem will renegotiate the rate during a retrain. This is also the only way the SupraFAXModem V.32 can rate renegotiate. &F1 Default now includes %G1. &F2 Default now includes %G1. S Register S109. Decimal Value Explanation 1 reserved 2 4800 bps 4 7200 bps 8 9600 bps 16 12000 bps 32 14400 bps 64 reserved 128 reserved The slowest possible carrier speed can be limited by S109. Some modems (including SupraFAX-Modem V.32 and V.32bis modems with early ROMs) can only up-shift a few times, and then they will lose the connection. The solution to this problem is to change S109 so that the modem does not need to up-shift as many times if S110=3. S Register S110. 0 Connect at V.32 only. 1 Enable V.32bis on V.32bis modems. 2 Enable V.32bis and automatic rate renegotiation. 3 Connect at the slowest possible V.32 or V.32bis speed, and then upshift if quality is good. The V.32bis standard negotiates carrier speed at 4800 baud, and then jumps to the agreed carrier speed to negotiate error correction/data compression. On noisy lines this can cause various con-nection problems. Supra's solution is to set S110 to 3. This causes the modems to connect at the slowest possible V.32 or V.32bis speed. With S110=3, 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 set by S109. COMPATIBILITY WITH A WIDER RANGE OF FAX MACHINES Rockwell chipset-based modems, including SupraFAXModems with older ROMs, cannot connect with a select few brands or models of fax machines. To provide increased compatibility with these fax machines, Supra has modified the fax tone emitted by the modem, so that the modem can communicate with a wider range of fax machines. This feature is in effect automatically; you do not need to do anything to invoke it. However, please note that you may hear a slight "rattling" noise when dialing out (on fax calls only), which is the sound of the tone that allows this compatibility. Silent Answer Silent answer lets one telephone line be used for two purposes: receiving faxes with the modem, and receiving voice calls with an answering machine or telephone. When set to this mode, the modem lets your answering machine answer all incoming calls. If it detects fax "CNG" tones, it routes the call to your fax software. Otherwise, it just sits silently on the phone line while you or your answering machine takes the call. You must be able to modify your fax software initialization string to take advantage of this feature. Your software probably does not allow you to modify the initialization string. Supra is currently working with several software vendors to add Silent Answer support to their software. To obtain a version of your software that supports Silent Answer, please contact the software company. Once you have software that supports Silent Answer, if your software uses register S0 to enable Auto Answer, set S0 to a number larger than your answering machine. This will allow the answering machine to answer first. When the phone rings, the modem will start monitoring the telephone line after the second ring. If it detects a fax tone, it will do one of the following: If S0 = 0, the modem will immediately answer the phone and attempt a fax connection. If S0 = 0, the modem will quickly issue up to 9 "RING" messages, expecting the fax software to issue an ATA. When installing the modem, DO NOT plug the answering machine into the telephone jack on the back of the modem. Instead, do ONE of the following: Plug the answering machine and modem into different wall jacks (i.e. jacks in different rooms). Plug the answering machine into a wall jack and the modem into the answering machine. Also, if you have an older answering machine that does NOT automatically turn itself off when it detects that a person or the modem has answered the call, you need a $7.95 adapter from Radio Shack, part #43-107. This adapter disconnects the answering machine from the phone line when the call is answered. It goes between the answering machine and the wall jack. Adaptive Answer Adaptive answer allows the modem to decide if an incoming call is fax or data, and handle it appropriately. To take advantage of this feature, you must have a software driver that knows how to switch between fax and data. Your fax or data software may have this driver built in. The driver must use the following commands to enable Adaptive Answer: AT +FCLASS=0 AT +FAA=1 (if using class 2) or +FAE=1 (if using class 1) S0=(1-255) (or ATA after RING message) The following result codes can be returned in Adaptive Answer mode: CONNECT XXXX if the call is a data call, or FAX if the call is a fax call. Caller ID In addition to the features described earlier, Caller ID is available as a low-cost upgrade option. If your upgrade includes this feature, you will want to understand the information in this section. Caller ID is only available in some areas of the country. You can only take advantage of it if your tele-communications software supports Caller ID. In between the first and the second ring of an incoming call, the phone company will send information on who is calling you. For example, if you are in terminal mode and have told the modem to answer on the third ring, you may see the following on your screen: RING DATE = 0321 TIME = 1405 NMBR = 5039672400 NAME = SUPRA CORPORATION {Optional. Info may vary from one phone company to another.} RING Caller ID can be used by many computer applications for improved security, efficiency, and convenience. Here are a few of the potential applications: Bulletin Board Systems (BBSs). A BBS can positively identify callers without the normal tedious logon sequences, and prevent unauthorized entry due to lost or stolen accounts and passwords. Screening Calls. Your computer can display the number and possibly name of who is calling, so you can decide if you want to answer or not. Professional billing. Your computer can match incoming calls to your client list and automatically create a charge to the client's account for your phone time. Database Lookup. Your customer's record or account can be displayed on your computer screen before you answer the call. The following AT commands enable and disable Caller ID: #CID=0 Disables Caller ID #CID=1 Enables Caller ID in formatted format #CID=2 Enables Caller ID in unformatted format (ASCII printable hex numbers) As with any AT data commands, you can issue these commands from your telecommunications software terminal mode, or include them in your telecom software's init string. For example, to enable Caller ID, type the following in your telecom software's terminal mode, where [CR] represents a carriage return: AT #CID=1 [CR] The SupraFAXModem Reference Manual provides more information on AT commands. Solving Problems If you need further assistance after following these instructions, please contact Supra Technical support. Supra Corporation Technical Support (Monday-Friday, 8 a.m.-5 p.m. PST) IBM DOS 503-967-2490 IBM Windows 503-967-2491 Macintosh 503-967-2492 All Other 503-967-2440 Also available by BBS, fax, or mail at: BBS 503-967-2444 FAX 503-967-2401 MAIL 7101 Supra Drive SW Albany, OR 97321 USA c 1992 Supra Corporation SupraFAXModem is a trademark of Supra Corporation. Other trademarks belong to their respective owners. 70-0087-R THIS PART ON BBS:T ON BBS:t be able to modify your fax software initialization string to take advantage of this feature. (Not all software initialization strings can be modified.) Your software may also issue commands you are not aware of, which could interfere with your ability to use this feature. Software is being updated to support Silent Answer; if your software does not support Silent Answer, please contact the software company. If you can modify your fax software initialization string, use the following fax commands to enable Silent Answer: AT +FCLASS=0 AT +FAA=2 (if you are using class 2) or AT +FAE=2 (if you are using class 1) At the time this is being written, Winfaxt software uses Class 2, FAXstft uses Class 1, and FaxTalk Plust either uses Class 1 or lets you choose between Class 1 and Class 2. If you do not know which Class your software uses, please contact the software company.