...
A
...
typical
...
voicemail
...
in
...
wav
...
format
...
can
...
be
...
1mb
...
or
...
larger.
...
Even
...
a
...
short
...
voicemail
...
can
...
be
...
192K.
...
If
...
you
...
are
...
sending
...
this
...
to
...
your
...
cell
...
phone,
...
it
...
can
...
start
...
to
...
use
...
up
...
your
...
data
...
plan,
...
and
...
take
...
longer
...
to
...
download.
...
This
...
hack
...
will
...
translate
...
your
...
outbound
...
wav
...
file
...
into
...
an
...
mp3.
...
Maybe,
...
works
...
here,
...
never
...
had
...
a
...
problem,
...
ymmv*
...
You
...
will
...
see
...
savings
...
on
...
the
...
order
...
of
...
70%.
...
That
...
192K
...
wav
...
file
...
is
...
now
...
a
...
40K
...
mp3.
...
And,
...
mp3's
...
are
...
directly
...
supported
...
on
...
most
...
cell
...
phones,
...
inline
...
without
...
needing
...
to
...
load
...
players.
...
Quick
...
Start
...
for
...
the
...
impatient:
...
download
...
postfix,
...
lame,
...
mutt,
...
ripmime
...
and
...
system-switch-mail.
...
Hack
...
main.cf
...
to
...
do
...
a
...
redirect,
...
and
...
add
...
my
...
script.
...
Seems
...
to
...
work.
...
Note:
...
this
...
does
...
NOT
...
translate
...
the
...
web
...
based
...
voicemail
...
to
...
mp3..
...
just
...
the
...
emailed
...
copy.
...
Make
...
backups,
...
backup
...
everything,
...
just
...
in
...
case.
...
No
...
warranties,
...
instructions
...
void
...
where
...
taxed
...
or
...
prohibited
...
by
...
law.
...
We
...
start
...
by
...
loading
...
a
...
different
...
...
server:
...
postfix.
...
I
...
like
...
it
...
better
...
than
...
sendmail,
...
we
...
use
...
it
...
in
...
our
...
commercial
...
...
security
...
devices,
...
and,
...
I
...
don't
...
know
...
how
...
to
...
do
...
this
...
with
...
sendmail.
...
(If
...
you
...
are
...
a
...
sendmail
...
expert,
...
add
...
your
...
hacks,
...
please)
...
yum
...
repositories
...
must
...
be
...
set
...
up
...
right,
...
if
...
they
...
aren't,
...
you
...
can't
...
do
...
the
...
downloads.
...
as
...
root,
...
do:
...
yum
...
install
...
postfix
...
system-switch-mail
...
lame
...
mutt
...
ripmime
...
procmail
...
execute:
...
system-switch-mail.
...
select
...
postfix
...
(you
...
can
...
go
...
back
...
by
...
running
...
it
...
again
...
and
...
selecting
...
sendmail)
...
make
...
sure
...
sendmail
...
is
...
not
...
running
...
anymore:
...
/etc/init.d/sendmail
...
stop.
...
make
...
sure
...
sendmail
...
doesn't
...
start
...
when
...
booted
...
chkconfig
...
--del
...
sendmail
...
(note:
...
system-switch-mail
...
might
...
have
...
done
...
this
...
for
...
you
...
already,
...
I
...
don't
...
remember)
...
make
...
sure
...
postfix
...
is
...
running:
...
/etc/init.d/postfix
...
start.
...
and
...
runs
...
when
...
rebooted.
...
chkconfig
...
--add
...
postfix
...
chkconfig
...
--level
...
2345
...
postfix
...
on
...
now,
...
the
...
fun
...
stuff:
...
Add
...
account
...
to
...
do
...
this:
...
adduser
...
wav2mp3.
...
home
...
directory
...
/home/wav2mp3.
...
don't
...
need/want
...
a
...
password.
...
mkdir
...
/home/wav2mp3/bin
...
/home/wav2mp3/Mail
...
get
...
this
...
file
...
and
...
put
...
it
...
into
...
bin:
...
(use
...
curl
...
or
...
wget..
...
one
...
of
...
these
...
should
...
be
...
installed,
...
if
...
not,
...
use
...
yum
...
to
...
install)
...
cd
...
/tmp
...
curl
...
-O
...
www.secnap.com/downloads/convertwav.tgz
...
or
...
wget
...
www.secnap.com/downloads/convertwav.tgz
...
cd
...
/home/wav2mp2/bin
...
tar
...
-zxvf
...
/tmp/convertwav.tgz
...
./
...
chmod
...
a+x
...
convertwav
...
need
...
more
...
magic:
...
take
...
...
to
...
wav2mp3
...
and
...
make
...
it
...
run
...
that
...
script:
...
cd
...
/home/wav2mp3
...
edit
...
.forward
...
and
...
put
...
this
...
one
...
line
...
there
...
EXACTLY
...
(sends
...
...
to
...
procmail,
...
will
...
execute
...
.procmailrc)
...
"|IFS='
...
'&&p=/usr/bin/procmail&&test
...
f
...
$p&&exec
...
$p
...
-f
...
||exit
...
75"
...
now,
...
.procmailrc:
...
this
...
exactly:
...
(between
...
the
...
— lines..
...
don't
...
include
...
---lines)
...
chown -R wav2mp3:wav2mp3 /home/wav2mp3
Add config lines to postfix to redirect outbound email, internally:
echo '/^Content-Type:
...
audio\/x-wav/
...
REDIRECT
...
wav2mp3@localhost'
...
>
...
/etc/postfix/header_checks
...
postconf
...
-e
...
header_checks=pcre:/etc/postfix/header_checks
...
restart
...
postfix.
...
postfix
...
reload.
...
should
...
work..
...
leave
...
yourself
...
a
...
voicemail,
...
see
...
what
...
happens.
...
- ymmv:
...
- your
...
- mileage
...
- may
...
- vary.
...
- this
...
- worked
...
- on
...
- a
...
- sipx
...
- cent
...
- os
...
- iso
...
- for
...
- 4.04,
...
- upgraded
...
- to
...
- 4.2.0
...
- with
...
- yum.
...
- mp3
...
- might
...
- be
...
- patented
...
- in
...
- and
...
- you
...
- might
...
- need
...
- to
...
- license
...
- it,
...
- depending
...
- on
...
- your
...
- use.
...
- if
...
- anything
...
- ever
...
- breaks,
...
- restore.
...
- if
...
- this
...
- doesn't
...
- work,
...
- figure
...
- out
...
- why,
...
- and
...
- edit
...
- the
...
- instructions.
...