Re: [hylafax-users] modem on /dev/ttyS2 appears wedged

[Lee Howard <faxguy@xxxxxxxxxxxxxxxx>]

On 2004.11.05 04:45 "Phillips, Steve M. (IA)" wrote:
> Hi,
>
>
>
> I have a Dell server with a Rocketmodem III 8 port modem card.
>
> I am currently getting the wedged message on one of the modems.
>
> I have powered down the server and restarted and this appears to not
> have fixed the problem. I am still getting the wedged message.
>
> Any ideas?

I have a lot of admiration for Comtrol and their desire to support 
their customers using the RocketModems as fax modems, but they seem 
fairly handicapped (probably by the lack of money generally in the fax 
market for firmware support) at fixing any fax problems with their 
modems.

The Comtrol RocketModem (ISA) and RocketModem II (PCI) are great fax 
modems.  They use Rockwell/Conexant chipsets, and the Class 1 
implementation is quite good on them.

The Comtrol RocketModem III (PCI) also uses Conexant chipsets, but the 
DSP code that Comtrol uses on them is different, perhaps coming from a 
different DSP code provider.

I tested a RocketModem III in my development system (VIA Apollo Pro 
Plus chipset motherboard) and found no problems at all.  Not long after 
putting that RocketModem into production use (a P4 system, Intel 
chipset) I struggled and struggled with various problems (modems 
getting locked up, V.17 failing outright, self-generated noise on 
sending and receiving, etc.).  I reported these problems to Comtrol, 
and they were quick to respond and address my problems, but they must 
rely on the fixes to come from their DSP code provider.  After a few 
months of waiting I did receive new firmware from them, but it still 
had many of the same problems.  I really couldn't wait any longer, so I 
replaced the RocketModem III with a RocketModem II and have had no 
further issues.

I'm not sure if the problems with the RM III only surfaced when it went 
into production because of the increased load on the card, or if it was 
due to a compatibility issue with the motherboard chipset.

In any case, I never did have a single modem port lock up permanantely 
that would not reset itself through a reboot.

Lee.

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