首先备份/usr/local/freeswitch/conf/dialplan/default.xml 。

然后vi编辑default.xml ，在

<extension name="Local_Extension">
     <condition field="destination_number" expression="^(10[01][0-8])$">
下面加入以下语句即可录音。

<action application="set" data="RECORD_TITLE=Recording ${destination_number} ${caller_id_number} ${strftime(%Y-%m-%d %H:%M)}"/>
   <action application="set" data="RECORD_COPYRIGHT=(c) 2011"/>
   <action application="set" data="RECORD_SOFTWARE=FreeSWITCH"/>
   <action application="set" data="RECORD_ARTIST=FreeSWITCH"/>
   <action application="set" data="RECORD_COMMENT=FreeSWITCH"/>
   <action application="set" data="RECORD_DATE=${strftime(%Y-%m-%d %H:%M)}"/>
   <action application="set" data="RECORD_STEREO=true"/>
   <action application="record_session" data="$${base_dir}/recordings/archive/${strftime(%Y-%m-%d-%H-%M-%S)}_${destination_number}_${caller_id_number}.wav"/>

大家应该看明白了，录音会自动存放在${base_dir}/recordings/archive下。

function grabaEntrada(tablaGraba, tablaGrabaMod)local razon, OWNER, destino = '', '', '';local handle, k, v  = nil, nil, nilOWNER = 'grabaEntrada'function mkDir(dir)local d = nillocal OWNER = 'mkDir'local tmp = ''if type(dir) == 'string' then dir = backSlash(dir)for d in string.gfind(dir, ".-/") dotmp = tmp .. denddir = tmpos.execute(string.format('MKDIR %s', string.gsub(dir, '/', '%\\') ))endendfunction onInputCBF(s, _type, obj, arg)local k, v = nil, nilif tablaGrabaMod._debug thenfor k, v in pairs(tablaGrabaMod) do print(string.format('tablaGrabaMod k-> %s v->%s\n', tostring(k), tostring(v)))end for k, v in pairs(obj) do printSessionFunctions(obj)print(string.format('obj k-> %s v->%s\n', tostring(k), tostring(v)))endif _type == 'table' thenfor k, v in pairs(_type) do print(string.format('_type k-> %s v->%s\n', tostring(k), tostring(v)))end endprint(string.format('\n(%s == dtmf) and (obj.digit [%s] == [%s] tablaGrabaMod.dtmf)\n', _type, obj.digit, tablaGrabaMod.dtmf))endif (_type == "dtmf") and (obj.digit == tablaGrabaMod.dtmf) then  print(string.format('\nBREAK!!!\n'))return 'break'else print(string.format('\nCONTINUE!!!\n'))return ''endendif type(tablaGraba) ~= 'table' then razon= string.format('ERROR Parametros invalidos')return false endif type(tablaGrabaMod) ~= 'table' thentablaGrabaMod = {segundosMax             = 7,umbralSilencio             = 500,segundosInterrupcion = 3,dtmf                   = '#',_debug                 = false}endif type(tablaGraba.dir ) ~= 'string'then razon= string.format('ERROR tablaGraba.dir no es tipo string, Abortando')return falseendif type(tablaGraba.audioT) ~= 'table' thenrazon= string.format('ERROR tablaGraba.audioT no es tipo table, Abortando')return falseendif #tablaGraba.audioT == 0 thenrazon= string.format('WARNING tablaGraba.audioT NO tiene audios definidos, defina audios (tablaGraba.audioT = {\'aviso.wav\', \'beep.wav\' })')endif (type(tablaGraba.nombre) ~= 'string' ) or (tablaGraba.nombre == '') thentablaGraba.nombre = dameNombreUnico(CUUID)..'.wav'razon= string.format('WARNING tablaGraba.nombre NO definido e esta VACIO, valor Asignado [%s]', tablaGraba.nombre)endif type(tablaGrabaMod.dtmf) ~= 'string' or #tablaGrabaMod.dtmf == 0 thentablaGrabaMod.dtmf = '#'endif type(tablaGrabaMod._debug) ~= 'boolean' thentablaGrabaMod._debug = falseendtablaGrabaMod.segundosMax           = tonumber(tablaGrabaMod.segundosMax)      or 7; tablaGrabaMod.umbralSilencio      = tonumber(tablaGrabaMod.umbralSilencio)   or 500; tablaGrabaMod.segundosInterrupcion  = tonumber(tablaGrabaMod.segundosInterrupcion) or 3;tablaGrabaMod.dtmf = tablaGrabaMod.dtmf:sub(1,1) --Solo un caracterif tablaGraba.dir:sub(#tablaGraba.dir) ~= '/' thentablaGraba.dir = tablaGraba.dir..'/'enddestino = string.format('%s%s', tablaGraba.dir, tablaGraba.nombre)handle = io.open(destino, 'w')if handle == nil then   --Trata de crear el directorio sino existelocal tmp, d, dir = '', '', ''dir = destinofor d in string.gfind(dir, ".-/") dotmp = tmp .. denddir = tmpmkDir(direlsehandle:close()endsession:execute('flush_dtmf')razon= string.format('LISTO path [%s] FLUSH_DTMF EJECUTADO!!', destino)parametros = creaInforme(razon, string.format('INFO %s', razon), CONSOLE_W, OWNER)if session:ready() thenfor k, v in pairs(tablaGraba.audioT) do session:streamFile(v) end session:setInputCallback('onInputCBF', ''); session:recordFile(destino, tablaGrabaMod.segundosMax, tablaGrabaMod.umbralSilencio, tablaGrabaMod.segundosInterrupcion); endend

http://wiki.freeswitch.org.cn/wiki/Channel_Variables.html#execute_on_answer

<context name="hanguponhook"><extension name="hanguphook" continue="true"><condition><action application="set" data="api_hangup_hook=luarun rec_ins_db.lua ${uuid} ${answered_time} ${caller_id_number} ${sip_to_user} ${audiofile} "/> </condition></extension></context>
<context name="audio"><extension name="audio" continue="true"><condition field="${trksno}" expression="^(\d+)$" break="on-true"><action application="set" data="session_in_hangup_hook=true"/><action application="set" data="RECORD_TITLE=Recording ${destination_number} ${caller_id_number} ${strftime(%Y-%m-%d %H:%M)}"/><action application="set" data="RECORD_COPYRIGHT=(c) 2012"/><action application="set" data="RECORD_SOFTWARE=Freeswitch"/><action application="set" data="RECORD_ARTIST=Freeswitch"/>

 <action application="set" data="RECORD_COMMENT=Freeswitch"/>

        <action application="set" data="RECORD_DATE=${strftime(%Y-%m-%d %H:%M)}"/><action application="set" data="RECORD_STEREO=true"/><action application="record_session" data="${audiofile}"/><action application="set" data="execute_on_answer=execute_extension hanguphook XML hanguponhook"/></condition></extension></context><context name="default"><extension name="rec"><condition field="destination_number" expression="^${REC_IC}(\d+)$"><action application="ring_ready"/><action application="lua" data="audio_rec.lua $1"/><action application="execute_extension" data="audio XML audio"/><action application="set" data="hangup_after_bridge=false"/><action application="bridge" data="sofia/internal/${REC_OG}$1@${sip_received_ip}:${sip_received_port}"/></condition></extension></context>
</include>