diff --git a/sip/agi/billing b/sip/agi/billing
new file mode 100755
index 0000000000000000000000000000000000000000..1a429f4852cce3c9b179a4b449ad89949422b182
--- /dev/null
+++ b/sip/agi/billing
@@ -0,0 +1,70 @@
+#!/bin/bash /usr/scripts/python.sh
+# -*- coding: utf-8 -*-
+import os
+import sys
+import time
+import socket
+import syslog
+import thread
+from threading import Thread
+import gestion.secrets_new as secrets
+from sip.asterisk import AGI, Manager, NullRecv
+
+se = os.open("/tmp/breakage.log", os.O_WRONLY|os.O_APPEND|os.O_CREAT)
+os.dup2(se, sys.stderr.fileno())
+os.close(se)
+
+
+def hangup_callback(manager, params):
+    agi=manager.agi()
+    if params['Channel'] == agi['channel']:
+        os._exit(0)
+
+def unreachble_callback(manager, params):
+    agi=manager.agi()
+    if params['Peer'] == "SIP/%s" % agi['callerid'] and params['PeerStatus'] in ['Unregistered','Unreachable']:
+        agi.hangup(agi['channel'])
+        os._exit(0)
+
+def start_billing(agi, src, dest):
+    syslog.syslog("Start billing from %s to %s" % (src, dest))
+    while True:
+        time.sleep(60)
+        syslog.syslog("Billing from %s to %s, one more minutes" % (src, dest))
+
+
+def Newstate_callback(manager, params):
+    agi=manager.agi()
+    syslog.syslog(params['ChannelStateDesc'])
+    if params['ChannelStateDesc'] in ['Up'] and params['Channel'] == agi['channel']:
+        t=Thread(target=start_billing, args=(agi, agi['callerid'], agi['extension']))
+        t.start()
+
+def dial(agi, to):
+    agi.dial(to)
+    os._exit(0)
+
+if __name__ == '__main__' :
+    manager=Manager("billing", secrets.get('asterisk_billig_passwd') , server="127.0.0.1", event=True, auto_connect=False, timeout=10)
+    syslog.openlog('billing')
+    agi=manager.agi()
+    manager.register_events_callback('Newstate', Newstate_callback)
+    manager.register_events_callback('PeerStatus', unreachble_callback)
+    manager.register_events_callback('Hangup', hangup_callback)
+
+    SIPDOMAIN=agi['SIPDOMAIN']
+    if not SIPDOMAIN or SIPDOMAIN in ['crans.org']:
+        SIPDOMAIN='forfait-ovh'
+    t=Thread(target=dial, args=(agi, "SIP/%s@%s" % (agi['extension'], SIPDOMAIN)))
+    t.start()
+
+    while True:
+        manager.connect()
+        try:
+            while True:
+                manager.process_events()
+                if not t.isAlive():
+                    os._exit(0)
+        except (socket.error, NullRecv):
+            pass
+    os._exit(0)