external FAX modem: ringer count setting

[Helge Asmus]

Hi,

because our AIO & Win2003 on the server definitely dislike each other, it came to my mind to try to install a quite antique external fax modem (built 1989, but never failed) as primary interface to the fax server.

Set it up & works well except that a caller has to let it ring 5x before the modem answers. Searched & found the documentation. Then used Hypertrm to configure the modem with these commands:

// Init Modem Profile #1 - RTS/CTS, XON/XOFF,
// Autoreliable, Compression MNP5 or V.42,
// Profile #1 active on restart

AT E1 K6 L1 M1 N1 Q0 S0=1 S8=1 S10=20 S12=25 S80=0 T0 V1 W2 X4 Y1
AT &R &T4 %C3 %E1 \A0 \J0 \G1 \N3 &W1 &Y1

In this string is programmed a ring count of 1, but somehow either the modem or the fax server still likes to answer only after 4 rings.

Tried to contact the makers of the modem, but they don't exist anymore.

The fax server's settings is to respond after 1 ring, too.

Any ideas?

[Antoniov.]

Mhm,
may be fax server software makes another setup; I guess you have read receive fax configuration on your software.
You can also make a simple test.
Open HyperTerm, set answer to 1, dial the fax number (when HyperTerm is open) and count when your modem answer; I bet it answer after 1.st ring.
Don't forget, software can answer to any call before counted rings. For example, you can set ATS0=5 with HyperTerm, then when you see RING on screen you can type ATA to answer immedialtely.

Antonio Vigliotti

[Antoniov.]

Sorry,
forget sentence with ATA blah blah.

Antonio Vigliotti

[Helge Asmus]

...found, that the modem's settings are changed by the W2k3 fax server by changing the ringer count to 0 when the RI line is active. This apparently lets the modem wait for the off-hook command which is issued by the fax server after 4 rings at the earliest no matter what the settings are. So what can I do now to change it?

Helge.

[Antoniov. · Accepted solution]

Hi,
read follow M$ article, can help you
http://support.microsoft.com/default.aspx?scid=kb;en-us;145879

Antonio Vigliotti

[Helge Asmus]

Hi, Antonio.

Finally found the time to investigate further in this issue.
The link given did not result in a success, because it appears to only work with activated remote dial-in access; alas while looking further into related registry entries, I found the string value
HKLM/SOFTWARE/FAX/TapiDevices/(the Modem enum)/MODEM/ResetCommandGenerated,
where Windows stores the modem's initialization.
Edited this value to contain the correct values for faxing & set a default fax speed of 19200 (seems to be the standard fax speed for G3 machines), & works perfectly!

thx for pointing me the direction.

Helge.