= Configurations pour joindre les messages reçus dans la boîte vocale aux courriels de notification =

== Modifier le fichier `/etc/asterisk/voicemail.conf` ==

 * Changer le format des messages vocaux
 * Activer l'option pour les joindre aux courriels
 * Changer le corps du message envoyé
 * Changer la commande d'envoi des courriels. Le script utilisé va convertir les messages vocaux du format wav au format mp3.

{{{#!highlight diff
@@ -8,7 +8,7 @@
 ; Formats for writing Voicemail.  Note that when using IMAP storage for
 ; voicemail, only the first format specified will be used.
 ;format=g723sf|wav49|wav
-format = gsm
+format = wav|gsm
 ;

@@ -27,7 +27,7 @@ format = gsm
 serveremail = assistance-informatique@auf.org
 ;serveremail=asterisk@linux-support.net
 ; Should the email contain the voicemail as an attachment
-attach = no
+attach = yes

@@ -98,7 +98,7 @@ emailsubject = [BoiteVocale ${VM_MAILBOX}] Nouveau message ${VM_MSGNUM} dans la
 ; just the CIDNAME, if it is not null, otherwise just the CIDNUM, or "an unknown
 ; caller", if they are both null.
 ;emailbody=Dear ${VM_NAME}:\n\n\tjust wanted to let you know you were just left a ${VM_DUR} long message (number ${VM_MSGNUM})\nin mailbox ${VM_MAILBOX} from ${VM_CALLERID}, on ${VM_DATE}, so you might\n
...
+${VM_MSGNUM}\n\nCliquez sur la pièce jointe pour écouter le message.\n\nVous pouvez aussi consulter votre messagerie vocale en composant *66;


@@ -118,6 +118,7 @@ emaildateformat = le %d %B %Y à %H:%M:%S
 ; You can override the default program to send e-mail if you wish, too
 ;
 ;mailcmd=/usr/sbin/sendmail -t
+mailcmd=/usr/local/sbin/sendmailmp3
}}}

== Installer les paquets requis ==
 * Paquets requis
  * dos2unix
  * lame
  * sox

 * Où trouver les paquets pour nos vieux serveurs Lenny
  * [[http://archive.debian.org/debian/pool/main/d/dos2unix/dos2unix_6.0-1_i386.deb|dos2unix]]
  * [[http://old-releases.ubuntu.com/ubuntu/pool/multiverse/l/lame/lame_3.98.2+debian-0ubuntu2_i386.deb|lame : version de chez Ubuntu]]
  * sox : avec la source http://archive.debian.org lenny/main (`aptitude install sox`)


== Le script de conversion wav vers mp3 ==
{{{#!highlight shell
#!/bin/sh
# Asterisk voicemail attachment conversion script
# Revision history :
# 22/11/2010 - V1.0 - Creation by N. Bernaerts
# 07/02/2012 - V1.1 - Add handling of mails without attachment (thanks to Paul Thompson)
# 01/05/2012 - V1.2 - Use mktemp, pushd & popd
# 08/05/2012 - V1.3 - Change mp3 compression to CBR to solve some smartphone compatibility (thanks to Luca Mancino)
# 01/08/2012 - V1.4 - Add PATH definition to avoid any problem (thanks to Christopher Wolff)
# 16/07/2015 - V1.5 - Handle natively GSM WAV (thanks to Michael Munger)

# set PATH
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"

# save the current directory
pushd .
 
# create a temporary directory and cd to it
TMPDIR=`mktemp -d`
cd $TMPDIR
 
# dump the stream to a temporary file
cat >> stream.org
 
# get the boundary
BOUNDARY=`awk -F'"' '/boundary=/ {print $2}' stream.org`
 
# cut the file into parts
# stream.part - header before the boundary
# stream.part1 - header after the bounday
# stream.part2 - body of the message
# stream.part3 - attachment in base64 (WAV file)
# stream.part4 - footer of the message
awk "/$BOUNDARY/{i++}{print > \"stream.part\"i}" stream.org
 
# if mail is having no audio attachment (plain text)
if grep -q 'plain' stream.part1
then
 
  # prepare to send the original stream
  cat stream.org > stream.new
 
# else, if mail is having audio attachment
else
  # cut the attachment into parts
  # stream.part3.head - header of attachment
  # stream.part3.wav.base64 - wav file of attachment (encoded base64)
  sed '7,$d' stream.part3 > stream.part3.wav.head
  sed '1,6d' stream.part3 > stream.part3.wav.base64
 
  # convert the base64 file to a wav file
  dos2unix -o stream.part3.wav.base64
  base64 -di stream.part3.wav.base64 > stream.part3.wav

  # convert wave file (GSM encoded or not) to PCM wav file
  sox stream.part3.wav stream.part3-pcm.wav
 
  # convert PCM wav file to mp3 file
  # -b 24 is using CBR, giving better compatibility on smartphones (you can use -b 32 to increase quality)
  # -V 2 is using VBR, a good compromise between quality and size for voice audio files
  lame -m m -b 32 stream.part3-pcm.wav stream.part3.mp3
 
  # convert back mp3 to base64 file
  base64 stream.part3.mp3 > stream.part3.mp3.base64
 
  # generate the new mp3 attachment header
  # change Type: audio/x-wav or audio/x-WAV to Type: audio/mpeg
  # change name="msg----.wav" or name="msg----.WAV" to name="msg----.mp3"
  sed 's/x-[wW][aA][vV]/mpeg/g' stream.part3.wav.head | sed 's/.[wW][aA][vV]/.mp3/g' > stream.part3.mp3.head
 
  # generate first part of mail body, converting it to LF only
  mv stream.part stream.new
  cat stream.part1 >> stream.new
  cat stream.part2 >> stream.new
  cat stream.part3.mp3.head >> stream.new
  dos2unix -o stream.new
 
  # append base64 mp3 to mail body, keeping CRLF
  unix2dos -o stream.part3.mp3.base64
  cat stream.part3.mp3.base64 >> stream.new
 
  # append end of mail body, converting it to LF only
  echo "" >> stream.tmp
  echo "" >> stream.tmp
  cat stream.part4 >> stream.tmp
  dos2unix -o stream.tmp
  cat stream.tmp >> stream.new
 
fi
 
# send the mail thru sendmail
cat stream.new | sendmail -t
 
# go back to original directory
popd
 
# remove all temporary files and temporary directory
#rm -Rf $TMPDIR
}}}

----