gert at greenie
Nov 5, 2005, 8:56 AM
using AS5300/MICA to send out faxes?
I'm currently evaluating use of our existing AS5300 to send out faxes
from one of our fax servers.
Nothing sophisticated like T.37, T.38, ... - just "open TCP/IP connection
to AS5300, talk AT commands to modem, send fax that way".
The AS5300 stubbornly refuses cooperation - that is, it will talk to
me, accept AT+FCLASS=2 or +FCLASS=2.0 commands, and dial out, but
a few seconds after the remote modem picks up and you can hear fax/modem
noises, it will hang up, and signal "NO CARRIER". (FAR too quickly,
it should at least try 30 seconds or so...)
This is how a typical attempt looks like:
$ telnet router 2021
Modem product ID = 242
Cisco MICA Hex Modem Module Product Information
Country Code 217
V.92(MOH,QC), V.90, K56FLEX 1.1, V.34+, V.22bis,
V.42, MNP2-4, V.44, V.42bis, MNP5, Fax, V.110, SS7_COT, TRACE
HEX modem index 05
CP code revision 22.214.171.124
CP revision date Sep 09 2003
SP code revision 126.96.36.199
SP revision date 09/09/2003 (MM/DD/YYYY)
- I tried this with 3 known-working fax devices at the receiving end
(ZyXEL 1496/POTS, ZyXEL 2864/ISDN, plain-paper standalone fax machine),
but same effect every time.
Is there any specific trick to it, or is it a case of "this is not
supported, it will not work"?
Hmmm. It *seems* that I'm not accessing the modem properly - a few
seconds after my last attempt, with me still being in telnet (writing
this mail), suddenly I had this in my telnet window:
... so it seems that "the router wanting to talk to the modem" and
"my telnet connection to line 21" are interfering here.
So what's the recommended way to do
- "TCP/IP connection to AS5300"
- "talk AT commands to modem"
- "send fax"?
thanks for your assistance,
USENET is *not* the non-clickable part of WWW!
Gert Doering - Munich, Germany gert [at] greenie
fax: +49-89-35655025 gert [at] net
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