Bug#200464: ITP: t38modem -- T.38 Fax over IP
Package: wnpp
Version: unavailable; reported 2003-07-08
Severity: wishlist
* Package name : t38modem
Version : 0.6.2
Upstream Author : Vyacheslav Frolov
* URL : http://www.openh323.org
* License : MPL
Description : T.38 Fax over IP
/*
* $Id: README,v 1.7 2002/12/19 10:41:03 vfrolov Exp $
*
* T38FAX Pseudo Modem
*
* Original author: Vyacheslav Frolov
*
* $Log: README,v $
* Revision 1.7 2002/12/19 10:41:03 vfrolov
* Added "Introduction" and "AT commands" sections and made some fixes
*
* Revision 1.6 2002/11/18 22:57:53 craigs
* Added patches from Vyacheslav Frolov for CORRIGENDUM
*
* Revision 1.5 2002/03/22 09:40:57 vfrolov
* Removed obsoleted option -f
*
* Revision 1.4 2002/01/09 16:14:58 rogerh
* FreeBSD uses /dev/ttypa and /dev/ttypb
*
* Revision 1.3 2002/01/09 16:01:03 rogerh
* Executable is called t38modem
*
* Revision 1.2 2002/01/01 23:11:49 craigs
* New version from Vyacheslav Frolov
* Removed references to unneeded OpenH323 patches
* Removed reference to -k and -m options in usage
* Change to use -route option
*
*/
1. Introduction
---------------
What is t38modem?
>From your fax application view point it's a fax modem pool.
>From IP network view point it's a H.323 endpoint with T.38 fax support.
>From your view point it's a gateway between a fax application and IP network.
2. Building
-----------
2.1. Compiling
-------------
$ make opt
3. Examples
-----------
3.1. Starting
-------------
$ ./obj_linux_x86_r/t38modem -n -o trace.log -p ttyx0,ttyx1 --route 0@127.0.0.1 --route all@172.16.33.21
Creates two modems /dev/ttyx0 and /dev/ttyx1
FreeBSD Users: You need to use -p ttypa,ttypb
instead of -p ttyx0,ttyx1
Remember to replace ttyx0 with ttypa and ttyx1 with ttypb
when following the rest of these instructions.
This will create two modems /dev/ttypa and /dev/ttypb
Cisco Users: You additionaly need to use --old-asn and --h245tunneldisable options.
If dialed number begins with '0' then it will be routed to local host ('0' will be discarded).
If not then it will be routed to 172.16.33.21.
3.2. Testing (you need two consoles)
------------------------------------
(FreeBSD users - remeber to use /dev/ttypa and /dev/ttypb with 'cu -l')
$ cu -l /dev/ttyx0 $ cu -l /dev/ttyx1
Connected. Connected.
<-- at <-- at
--> OK --> OK
(wait at least 10 secs)
<-- atdt012345
-->
--> RING
-->
--> RING
<-- ati9
--> NDID = 12345
--> OK
-->
--> RING
-->
--> RING
<-- ata
--> CONNECT --> CONNECT
<-- x
--> OK
<-- ath
--> OK
-->
--> ERROR
<-- at
--> OK
<-- at
--> OK
... ...
3.3. Example of Cisco config (loopback)
---------------------------------------
10.0.2.12 --> Cisco port 2:D --E1-cable--> Cisco port 3:D --> 10.0.2.12
dial-peer voice 3340 voip
incoming called-number 3334....
codec g711alaw
fax rate 14400
fax protocol t38 ls-redundancy 0 hs-redundancy 0
dial-peer voice 3341 pots
destination-pattern 3334....
port 2:D
forward-digits 7
dial-peer voice 3342 pots
incoming called-number 334....
direct-inward-dial
port 3:D
exit
dial-peer voice 3343 voip
destination-pattern 334....
session target ipv4:10.0.2.12
codec g711alaw
fax rate 14400
fax protocol t38 ls-redundancy 0 hs-redundancy 0
exit
3.4. Example of HylaFAX modem config files
------------------------------------------
Copy HylaFAX/etc/config.ttyx to HylaFAX's etc directory
Create simbolic links:
config.ttyx0 -> config.ttyx
config.ttyx1 -> config.ttyx
Start HylaFAX with new modems:
$ .../faxgetty -D ttyx0
$ .../faxgetty -D ttyx1
(FreeBSD users - don't forget we are using ttypa and ttypb)
4. AT commands
--------------
4.1. AT#CID command
-------------------
4.1.1 calling/called number reporting
-------------------------------------
#CID=0 - disables calling/called number reporting (default).
#CID=10 - Enables calling/called number reporting after the first RING.
Example:
--> RING
--> NMBR = <calling number>
--> NDID = <called number>
--> RING
--> RING
4.2. ATI command
----------------
4.2.1 calling/called number reporting
-------------------------------------
I8 - reports calling number for last incoming call.
I9 - reports called number for last incoming call.
Example:
<-- ATI8I9
--> NMBR = <calling number>
--> NDID = <called number>
--> OK
4.3. ATD command
----------------
4.3.1 T.38 mode modifiers
-------------------------
F - enable T.38 mode request after dialing.
V - disable T.38 mode request after dialing (default).
Examples:
<-- ATDF<user's number>
enables T.38 mode request after dialing but user can override it by
inserting V into <user's number>.
<-- ATD<user's number>V
disables T.38 mode request after dialing and user can't override it
by inserting F into <user's number>.
4.3.2 calling/called number modifiers
-------------------------------------
L - reset and begin of calling number.
D - continue of called number.
If calling number is empty after processing ATD command then t38modem's
local party number used.
Examples:
<-- ATD<user's number>
calling number is t38modem's local party number but user can override
it by inserting L<user's calling number> into <user's number>
<-- ATD<user's number>L
calling number is t38modem's local party number and user can't override
it by inserting L<user's calling number> into <user's number>
<-- ATDL<calling number>D<user's number>
calling number is <calling number> but user can override
it by inserting L<user's calling number> into <user's number>
<-- ATD<user's number>L<calling number>
calling number is <calling number> and user can't override
it by inserting L<user's calling number> into <user's number>
-- System Information:
Debian Release: testing/unstable
Architecture: i386
Kernel: Linux box 2.4.20-xfs #1 SMP Mit Mär 26 15:37:36 CET 2003 i686
Locale: LANG=C, LC_CTYPE=C
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