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From: "Amancio Hasty, Jr." <hasty@rah.star-gate.com>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Voice Mail FAQ
Date: 13 Sep 1995 07:42:45 GMT
Organization: TLGnet, a division of RGNet, Inc.
Lines: 439
Message-ID: <43621m$b51@kadath.zeitgeist.net>
NNTP-Posting-Host: rah.star-gate.com
Mime-Version: 1.0
Content-Type: multipart/mixed;
boundary="-------------------------------3486348971827906360585331611"
X-Mailer: Mozilla 1.1N (X11; I; FreeBSD 2.2-CURRENT i386)
X-URL: file:/usr/ftp/pub/Voice.FAQ
This is a multi-part message in MIME format.
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--
Amancio Hasty
Hasty Software Consulting Services
Tel: 415-495-3046
Cellular: 415-309-8434
e-mail: hasty@star-gate.com Powered by FreeBSD
---------------------------------3486348971827906360585331611
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To turn your FreeBSD box into an Voice Answering Machine :)
My modem is Zyxel 1496E. This is what I have other modems may or
may not work. If you decide to try a different modem and it works
please let me know. Oh, and I am not voice modem expert ....
List of software that I use for sure you need at least mgetty+sendfax
freebsd.cdrom.com:/pub/FreeBSD/FreeBSD-current/ports/comms/mgetty+sendfax
freebsd.cdrom.com:/pub/FreeBSD/distfiles/mgetty+sendfax-0.22.tar.gz
Optional goodies:
freebsd.cdrom.com:/pub/FreeBSD/FreeBSD-current/ports/mail/metamail
freebsd.cdrom.com:/pub/FreeBSD/distfiles/mm2.7.tar.Z
freebsd.cdrom.com:/pub/FreeBSD/FreeBSD-current/ports/mail/mh
freebsd.cdrom.com:/pub/FreeBSD/distfiles/mh-6.8.3.tar.Z
mail to Henrik Vestergaard Draboel <hvd@terry.ping.dk>
to get his am shell scripts to manipulate /var/spool/voice/messages Is great!
TO BUILD:
To build the voice extensions in the directory where you unpack
mgetty+sendfax:
At the end of this document is my vconfig.h which if you like you
can use. vconfig.h is used to configure various parameters for
voice operation.
make vgetty
make vgetty-install
cd voice
cp vg* /var/spool/voice/.
cat >/var/spool/voice/.code
1995
This last command will be your security to access your messages
from a telephone. During the recording session, enter:
*<security-code>#
Call yourself and record a nice greeting message .
If not you can record your messages using your soundcard:
cat /dev/dsp >fun.message
lintopvf <fun.message | pvftoadpcm3 >tel.mesg
cp tel.mesg /var/spool/voice/messages/.
cd /var/spool/voice/messages
Edit Index to include all your message files in this directory.
If they are multiple messages vgetty will chose one at random
to playback when it answers the phone.
Since my modem is hanging off /dev/cua00, I added to /etc/ttys:
cua00 "/usr/local/sbin/vgetty -s 57600 -n 3 " cons25 on secure
For Zyxel modems you do NEED 57600 or higher to not drop voice info.
To manipulate picking up messages or playing with DTMF touch tones,
check out /var/spool/voice/vg_dtmf. You should be able to modify it to
support mailboxes, slowing down a message , repeat a message, etc.
To manipulate incoming messages see /var/spool/voice/vg_message.
This is a fragment of what mine has:
PATH=/bin:/usr/bin:/usr/local/bin:$BINDIR:/usr/local/bin/mh
MAIL=/usr/sbin/sendmail
MAILTO=hasty
##
## MIME format thanks to Marc Evans <marc@Synergytics.Com>
##
## mail an audio/basic file via metamail, works only for adpcm
## Use this method if you have /dev/audio support
adpcmtopvf -r612 <"$1" | pvfspeed 1.15 | pvftobasic >$TMP 2>/tmp/fuck.that
metasend -t $MAILTO -b -z -s "Voice-mail message" -e base64 \
-m audio/basic -f $TMP </dev/null 2>&1 >/tmp/get.real
rm -f $TMP
mail who@mips.com << me
Subject: Voice Mail Notification
This is not a Test you really got a message waiting for you :)
me
----------
/*
* config.h
*
* This file contains the default values for vgetty, zplay and the
* pvf tools. These values can be changed by the configuration file
* and by command line arguments.
*
* NOTE: Configuration file support is currently missing.
*
*/
#ifdef MAIN
char config_h[] = "$Id: config.h,v 1.3 1995/04/11 19:18:32 marc Exp $";
#endif
/*
* Common defaults
* ---------------
*/
/*
* Minimum length of detected DTMF tones, in milliseconds. This is
* currently only supported by ZyXel modems with a ROM release of 6.12
* or above. The default is 36 milliseconds.
*/
#define DTMF_LEN 36
/*
* DTMF tone detection threshold (0.0 to 1.0). Increase this if the
* modem erroneously detects DTMF tones, decrease it if it fails to
* detect real ones. This is currently only supported by ZyXel modems
* with a ROM release of 6.12 or above. The default is 0.4.
*/
#define DTMF_THRESHOLD 0.2
/*
* This is the default compression mode for vgetty for incoming voice
* messages and for the recording option of zplay.
*
* For ZyXel modems: 1 = CELP, 2 = ADPCM-2, 3 = ADPCM-3, 4 = ADPCM-4.
* Please note that there are convertors to other sound formats only for
* the ADPCM modes.
*
* For Rockwell based modems: 2, 3, or 4 (bits/sample). Please note that
* Rockwell didn't publish the internal information of their sound format,
* so there are no convertors to other sound formats.
*
* The default is 3.
*/
#define REC_COMPRESSION 4
/*
* Silence detection length in 0.1 seconds. If the modem detects silence
* for this time, it sends a silence detect to the host. Default is
* 7 seconds (70 * 0.1 seconds).
*/
#define REC_SILENCE_LEN 70
/*
* Silence detection threshold (0.0 to 1.0). Increase this value if you
* have a noisy phone line and the silence detection doesn't work reliably.
* The default is 0.4.
*/
#define REC_SILENCE_THRESHOLD 0.4
/*
* If REC_REMOVE_SILENCE is enabled, the trailing silence of an incoming
* voice message as detected by the modem will be deleted. This might
* cause you to miss parts of a message if the silence threshold is
* high and the caller is talking very quietly. To be on the safe side,
* don't define this. This feature is turned off by default.
*/
#define REC_REMOVE_SILENCE TRUE
/*
* Maximum recording length in seconds. Hang up if somebody talks
* longer than this. Default is 5 minutes (300 seconds).
*/
#define REC_MAX_LEN 300
/*
* Default values for vgetty
* -------------------------
*/
/*
* Volume of the internal speaker when answering the phone (0.0 to 1.0).
* 0.0 is off, 1.0 is maximum. The default is 1.0.
*/
#define SPEAKER_ANSWER_VOLUME 1.0
/*
* If vgetty knows that there are new messages (the flag file exists),
* it will turn on the AA lamp on an external modem and enable the toll
* saver - it will answer the phone TOLL_SAVER_RINGS earlier than the
* default. This feature is turned off by default.
*/
#define TOLL_SAVER_RINGS 1
/*
* Should the recorded voice message file be kept even if data, fax or
* DTMF codes were detected? If this is set, vgetty never deletes
* a recording, if it is not set it will delete the recording, if an
* incoming data or fax call is detected or if DTMF codes were send. Also
* this should work in nearly every situation, it makes You loose the
* recording, if the caller "plays" with DTMF codes to make the message
* even more beautiful. This feature is enabled by default.
*/
#define REC_ALWAYS_KEEP_MESSAGE FALSE
/*
* Support for distinctive RINGs, if you don't want this just undefine
* DIST_RING below. This is only tested for ZyXELs, let me know if
* you make it work on other modems.
*
* A simple "RING" or RING_VOICE below cause vgetty to behave as usual,
* i.e. answer initially in voice mode and switch if appropiate.
* RING_DATA or RING_FAX cause it to answer in fax/data mode immediately.
* If the ring isn't one of the types above, the call is ignored and
* vgetty won't pick up the phone. This feature is disabled by default.
*/
#define DIST_RING FALSE
#define DIST_RING_INIT "ATS40.3=1 S40.4=1 S40.5=1 S40.6=1"
#define DIST_RING_VOICE A_RING1
#define DIST_RING_DATA A_RING2
#define DIST_RING_FAX A_RING3
/*
* Filename of the logfile for vgetty. A "%s" will be replaced by the
* device name.
*/
#define VGETTY_LOG_PATH "/var/log/vgetty.%s"
/*
* The R_FFT_PROGRAM is responsible for distinguishing voice and
* data calls if the line is not silent. It checks the power spectrum
* of the sound data and, if it only contains few frequencies, sends
* a SIGUSR2 to vgetty to make it stop recording. This is also quite
* effective against dial tones. (Code by ulrich@gaston.westfalen.de)
*
* It needs to convert the voice data, i.e. it currently
* works only for ZyXEL adpcm-2 and adpcm-3. It is automatically
* disabled if it can't deal with the voice data.
*
* There are a few configurable parameters, check the top of
* pvffft.c for details. The defaults seem to work quite well.
*
* Undefine R_FFT_PROGRAM if you don't want this, i.e. if you
* have a slow machine that can't handle the additional CPU load.
*/
/*#define FFT_PROGRAM "" */
#define FFT_PROGRAM "vg_fft"
/*
* Primary voice directory for vgetty.
*/
#define VOICE_DIR "/var/spool/voice"
/*
* Location of the flag file for new incoming messages relative to the
* primary voice directory.
*/
#define MESSAGE_FLAG_FILE ".flag"
/*
* Location of the optional answer mode file, %s is replaced with the
* device name. If the file doesn't exist, use 'voice/fax/data' as the
* default setting.
*/
#define VGETTY_ANSWER_FILE "/etc/answer.%s"
/*
* Location where vgetty stores the incoming voice messages relative to
* the primary voice directory.
*/
#define VGETTY_RECEIVE_DIR "incoming"
/*
* Directory containing the messages for vgetty (greeting, handling the
* answering machine) relative to the primary voice directory.
*/
#define VGETTY_MESSAGE_DIR "messages"
/*
* Name of the file in the R_VOICE_MESSAGE_DIR that contains the names of
* the greeting message files (one per line, no white space).
*/
#define VGETTY_MESSAGE_LIST "Index"
/*
* Filename of a backup greeting message in R_VOICE_MESSAGE_DIR (used if
* the random selection fails to find a message).
*/
#define VGETTY_BACKUP_MESSAGE "standard"
/*
* The programs defined below get called by vgetty. The modem will
* still be in voice mode and is connected to STDIN. vgetty will
* set the argument(s) ($1 for shell scripts, argv[1] for C programs)
* as described.
*
* Define an empty program name, if You want to disabled one of those
* programs. For an example see CALL_PROGRAM below.
*/
/*
* Program called when a voice message has been received.
* Argument: filename of the recorded message
*/
#define MESSAGE_PROGRAM "vg_message"
/*
* There are two separate uses for the DATA/VOICE button:
* - if a RING was detected recently, answer the phone in fax/data mode
* - otherwise, call an external program to play back messages
*
* If you don't define R_BUTTON_PROGRAM, vgetty will always pick up
* the phone if DATA/VOICE is pressed.
*
* Argument: "button" (a constant string)
*/
#define BUTTON_PROGRAM "vg_button"
/*
* Program called when a DTMF command ( '*DIGITS#' ) is received.
* Argument: the DIGITS received (without '*' and '#')
*/
#define DTMF_PROGRAM "vg_dtmf"
/*
* Program called when the phone is answered, this is *INSTEAD*
* of the normal behaviour. Don't define this unless you want
* to i.e. set up a voice mailbox where the normal answering
* machine behaviour would be inappropiate. The C code is probably
* more stable and uses less resources.
*/
#define CALL_PROGRAM ""
/* #define CALL_PROGRAM "vg_call" */
/*
* Command sequence used by vgetty to answer the phone.
*/
#define VGETTY_ATA "ATA"
/*
* Default values for zplay
* ------------------------
*/
/*
* Maximum number of rings to wait for an answer when dialing out from
* zplay. The default is 5.
*/
#define ZPLAY_MAX_RINGS 5
/*
* Volume of the internal speaker when it is used to play a message
* with zplay (0.0 to 1.0). The default is 1.0.
*/
#define ZPLAY_SPEAKER_VOLUME 1.0
/*
* Bps rate for zplay, must be high enough for the compression mode used.
* Note that this is an integer, not one of the Bxxxx defines. This must
* be set to 38400 for Rockell modems. The default value is 38400.
*/
#define ZPLAY_SEND_BAUD 38400
/*
* Filename of the logfile for zplay.
*/
#define ZPLAY_LOG_PATH "/var/log/zplay.log"
/*
* Default values for the pvf tools
* --------------------------------
*/
/*
* ZyXel ROM release should be set to 601, 610, 611, 612... to match
* your ROM release. This affects ADPCM conversion.
*/
#define ZYXEL_ROM 613
------------------------------------------------------------
Happy Phone Hacking :)
Amancio Hasty
---------------------------------3486348971827906360585331611--