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Frequently asked Questions

FAQ Copyright and Disclaimer
General questions

Hardware related
Do you have a question?
Write it down here:

What is the "life boat"?
It's a small piece of code that is loaded into the FLASH EEPROM immediately after it has been erased. If something goes wrong during the rest of the programming sequence, the "life boat" will be there. On power on, it flashes the FAX LED (if available) to indicate it's there.

In "life boat" mode is the modem only able to do only ONE thing; program the FLASH EEPROM. And that's the only thing you really need in an emergency like this...

What if something is wrong and there is no "life boat"?
Then you have a big problem... It's very unlikely though, so look again. It may be another problem. And when you have looked again, wait a while and look a third time. If this doesn't work either, write a fault report (like "no life boat") and send the modem for service, and we'll fix it.

I FLIXED and now the modem is not responding.
Something went wrong, and you need to try again.

Your modem may be in "life boat" mode. On external modems, you can see the FAX LED flashing or one or two "F" on the display telling you it's in the "life boat". Find out what went wrong, correct it and try flashing again. That's what the lifeboat is there for - to give you another chance...

Things to verify:

* Power and data connectors securely fitted.

* Uncorrupted file. If in doubt, try an older one that you know works. Or download one from

* File located on local hard disk. Floppy disk or networked disks may cause short interrupts in the data transfer.

* Other things that may interrupted the transfer like a computer crash or a power glitch.

* Try powering off the modem and power on again.

* On modems with front buttons: press D/V during power on to force it to enter the "life boat".

This is the program that upgrades Intertex FLASH modems.

Can I control the modem from a TAPI compliant program?
No and yes. TAPI controls phone calls and switches, and is not very interested in modems. Still, if you have a "plain old" telephone that works fine with your TAPI system, you may replace it with the modem. It will still only be as useful as a "plain old" telephone with a headset though.

Software Made by Intertex - IXEN
DOS enabler for PCMCIA modems. This tiny program activates the PCMCIA modem and makes it look like a 16450/16550 COM port in DOS. This is generally only useful on old laptops only running DOS.

What is that handset adapter for?
Connecting a telephone handset. This may be used in about the same way as the headset. The reason to have it is that you may prefer to use your old and familiar telephone for SVD/DSVD calls. (In fact, it works in telephone and voice mode too, which is harder to implement than it looks.)

Is there any uppgrade to V.90 for IX36?
All IX36 DL modems can be upgraded to V.90.

Is there any uppgrade to K56 or V.90 for IX35?

IX35/36 V34/K56/V.90- modems - What is it?
It is a family of modems available as external boxes (serial RS232 interface), internal (ISA) and PC-CARD/PCMCIA. IX35 supports V34+, and IX36 supports K56 and/or V.90.

Many versions do also support handset/headset telephony and SVD or DSVD.

Is my IX33/34 old and useless now?
Not really. You can still buy one (Oct 1997), but you should consider IX35/36 instead. The only good reason to order IX33/34 is if you:

* want synchrounous communication (often used by mainframe computers) and/or wants to use a leased line. Order IX34-EDSL, that is state of art for this application.

* already got a lot of IX33/34 and just want a few more.

* have a product tested or approved with IX33/34 and not IX35/36 (yet).
IX33 in V32': The top speed of 14400 bps may be ok for "normal" or occational mail reading and "surfing". Try it to see if it suits your needs, or if you want more speed. V32' is an ITU standard.

IX33-28 in V.Fast Class (VFC): The top speed is 28800 bps. VFC is not an ITU standard, and may not be supported everywhere today, which means you may be stuck in V32' at 14400 bps.

IX34 in V34 (28800bps) or "V34+" (33600 bps): This is close to thetheoretical max speed for an analogue telephone line. Consider it state of the art for modem traffic from "any phone jack" to "any phone jack".

Can I upgrade my IX33/34?
IX33: No. You may gain get some minor extra features or bug fixes by a software upgrade, but no more.
IX34: As for IX33, but with one addition: A few IX34 modems that were shipped and sold as 28800 bps modems are possible to upgrade to 3600 bps with new software. Check this by opening a terminal window and issue the command: ATI3
You will see a software revision string ended by a letter. If the letter is lower case (like 1.31a) you're lucky. If it's upper case (like 1.31A) you're not. Remember: We shipped those modems as 8800 modems, and promised no more. The 33600 upgrade is a pure bonus!

There is NO uppgrade to K56 or V90 for IX33/34.

IX33/34 series V32'/V34 fax modems - What is it?
It is a family of modems available as external boxes (serial RS232 interface), internal (ISA) and PC Card/PCMCIA. The family started with IX33 with max speed 14400 (V32') and evolved gradually. Last (and final?) member is IX34-EDVH 33600 with max speed 33600 (V34+) voice and headset. Today, only the PC Card and the external IX34-EDSL (for leased line and real synchronous operation) are produced.

Is Caller ID for UK available?
No. (980812). But this may be implemented in the future as a FLASH upgrade.

How does a leased line modem work?
Leased line modems are (of course) used on a leased line, that is a dedicated point-to-point phone line. This can be a simple two wire cable, or a special connection from a long distance telephone company. There is no power and no dialtone or ring signal, since the wire is connected all the time.

The Leased Line modem behaves like a normal modem, and our ordinary manual is valid for them. The only difference (except electric) is that you do not have to give the ATD command to dial, and the as soon as they are turned on. They will succeed if one is configured in ORIGINATE mode and the other in ANSWER mode. (Provided that they are connected by the leased line.)

My modem does not respond in 115200 bps and sometimes not in 57600 bps (but in lower speeds). What is wrong?
When receiving AT-commands, the modem detects the baudrate automatically. In your case, the modem obviously fails doing that. In higher baudrates, the "autobauding" becomes more sensitive to long cables or inaccurate timing of the bits of each character received. We know that some IBM-computers (at least PC 350 and PC 755) have 20% longer startbits than nominal, resulting in autobauding problems.

Do the following:
1. If you have a longer modem cable than a few meters, try a shorter cable.

2. If you still have problems, you may try to update the modem firmware to the latest version. On IX35 and IX36 series, we made an improvement on the autobaud algorithm in November -97. It now works better with the mentioned IBM computers and with longer cables.

3. If this doesn't help, you may try to tune the autobaud timing using S-register 75. Try first to increase the value in steps of ten. If no sign of improvement, decrease it instead. AT&F2 restores it to the default value. If it cures the problem, save it by doing AT&W.

4. If nothing of this helps, the cause of the problem is probably not related to timing.

How do I read the CIS in my PCMCIA modem?
AT*AJ reads it from the modem directly.

I have a PCMCIA modem and I change from Windows 95 version A to version B now I only get 2400 connections.
Your modem INF-File " mdmitex.inf " is old. You need to replace it with a new one.

The display shows high speed, but sometimes data transfer is slow.
There is a possibility that internet is slow because of heavy traffic. If you want to check your modem's speed, make a connection to single computer to make sure there is no delay due to heavy traffic.

How do I change back to normal XON/XOFF flow control again?
Change the XON/XOFF characters by: ATS32=17 S33=19 &W

How do I enable ENQ/ACK flow control?
Change the XON/XOFF characters by: ATS32=5 S33=6 &W

I do not get connections at highest speed (like 33600 or 56000).
This is generally due to non perfect line quality. The modem haslowered the speed to avoid too much errors in the transmission. (Errors are handled by sending data again, which often would lower your actual transfer speed even more.)
If you still insist, try the AT%S2 command (more info in your manual). It will give you a little more aggressive speed selection.

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