Predictive says no dial tone on K's internal modem

[Darrell Allen]

I get the following message from Predictive:

WARNING - 11:48 AM, 07/23/01 - Transfer(200)
Dialing error on ps_mt1432_tone modem
CTL(234) No dial tone detected by modem

This is a K570's modem on the core i/o card. I've been told the only way to reset the modem is to shutdown and power-cycle the box (what a design). Unfortunately that didn't fix the problem. I've tested the line itself and it's ok. Any ideas?

[Jordan Bean]

I believe the internal modems on K class are /dev/cua0p7 (direct connect), /dev/cul0p7 (dial-out), and /dev/ttyd0p7 (dial-in). Make sure you have an entry in /etc/uucp/Devices for cul0p7 like

Direct cul0p7 - 9600 direct

Then access the modem with

cu -lcul0p7 dir

Once it says Connected, enter ATZ, press return. It should say OK. Then enter ~. and press return to close. Example:

$ cu -lcul0p7 dir
Connected
atz
OK
~.

Disconnected
$

This will verify the modem is present.

Also, if dialin login is setup, make sure it monitored by uugetty, not getty. Unlike getty, uugetty supports use of the line in both directions to permit dialout while the line is not already in use. getty exclusively locks the line for dialin only.

[Kevin Wright]

I had the same problem, when the internal modem is hung, the only way is a reboot. That's why I installed the external modem, HP predictive will send you one, just hook it up, then you have to get to the CM prompt on the console and tell the system to use the external modem and not the internal one..If the external one hangs or breaks, you don't have to reboot.

[Paula J Frazer-Campbell]

Darrell

As Kevin said get an external modem from HP - its free and part of Predictive support.


Paula

[Jordan Bean]

Ah, I completely forgot that these internals have a bad reputation for crapping out and requiring a hardboot to reset... probably because I have yet to experience it... I better replace them while I can.

[Michael Tully]

Somtimes the only way to reset these diabolical
internal modems on the 'K' class is a full
shutdown and restart.

Good Luck!
Michael

[Patrick Wessel]

Darrell,
Are you able to dial out with the modem manually? (try to connect with the cu command and do a atdt)
If this failes with 'no dialtone' too, add a atx0 to your modem configuration string.

[paul courry]

May I suggest two things?

1. Plug a plain old telephone into the line and see if somebody might have kicked the cord out somewhere along the line.

2. There *IS* a HP utility that will attempt to reset the internal modem. It does not always work, but it is better than a reboot.

[Darrell Allen]

Thanks for the replies. I had already verified the line back to the HP itself. That's fine. I'm not familiar with using cu so I don't know if I'm doing things wrong when I try cu -lcul0p7 (it sits there awhile then replies "Connect failed: no answer) or if the modem is actually bad. Kermit is giving me some info which the response center says indicates a hung modem - shutdown and power cycle to correct.

In the meantime, HP is to bring a core i/o card. I'm insisting on an external modem and hopefully they'll bring one. Having to power cycle a production system because Predictive fails is unacceptable.

Thanks again.

[Jordan Bean]

before you replace the core and modem, make sure the modem is not locked.

Turn the key to service.
At the console, press ctrl-B.
At the CM> prompt, enter:

CM> ur (to unlock remote console - modem port)
CM> co (to return to console mode)

If cu still doesn't return "Connected", there are a couple other CM commands to setup the modem. Use HE to list the available CM commands.

[Darrell Allen]

HP replaced the core i/o card and installed an external modem. Works like a charm.

BTW, ur didn't help.

Thanks for the suggestions,

Darrell