How to use mod-client-asterisk ?

    * Put the file mod_client_asterisk.beam in /usr/lib/ejabberd/ebin/
    * Edit /etc/ejabberd/ejabberd.cfg, and add the lines in the modules definitions :

{modules,
 [
    {mod_client_asterisk, [
        {server_asterisk, SERVER_NAME},
        {port_asterisk, SERVER_PORT},
        {username, "USERNAME"},
        {secret, "SECRET"},
        {message, "TEXT"},
        {directory,[
            {"NUM1","USER1","DOMAIN"},
            {"NUM2","USER2","DOMAIN"},
            {"NUM3","USER3","DOMAIN"}
            ...
        ]}
    ]},
   ...
  {mod_shared_roster,[]},
  ...
  {mod_vcard, []},
  {mod_version, []}
 ]}.

SERVER_NAME and SERVER_PORT (without quotation mark) are the name of the pabx and the AMI port used (usually 5038),

USERNAME and SECRET (with quotation mark) are the parameters to connect to asterisk,

TEXT (with quotation mark) is the text shown in Jabber when the user makes a call,

NUM1, USER1 and DOMAIN (with quotation mark) are the phone number, the Jabber name and the jabber domain used of the first user.

You need the mod_shared_roster to be activated.