diff --git a/.gitignore b/.gitignore
index a5cd500..5366ccf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 __pycache__
 dist/
+.venv
diff --git a/fieldpoc/dect.py b/fieldpoc/dect.py
index 32508fd..bc428d8 100644
--- a/fieldpoc/dect.py
+++ b/fieldpoc/dect.py
@@ -18,15 +18,31 @@ class Dect:
             ommsync=True,
         )
 
+    @property
+    def temp_num_prefix(self):
+        return next(self.fp.extensions.extensions_by_type("temp")).num
+
+    def load_temp_extensions(self):
+        current_temp_extension = 0
+        used_temp_extensions = self.c.find_users(lambda u: u.num.startswith(self.temp_num_prefix))
+        for u in used_temp_extensions:
+            temp_num = u.num
+            self.fp.temp_extensions[temp_num] = {
+                "name": f"Temp {temp_num[4:]}",
+                "type": "dect",
+                "trunk": False,
+                "dialout_allowed": False,
+            }
+
+
     def get_temp_number(self):
-        temp_num_prefix = next(self.fp.extensions.extensions_by_type("temp")).num
         current_temp_extension = 0
-        used_temp_extensions = [u.num[len(temp_num_prefix):] for u in self.c.find_users(lambda u: u.num.startswith(temp_num_prefix))]
+        used_temp_extensions = [num[len(self.temp_num_prefix):] for num, ext in self.fp.temp_extensions.items()]
 
         while "{:0>4}".format(current_temp_extension) in used_temp_extensions:
             current_temp_extension += 1
 
-        return "{}{:0>4}".format(temp_num_prefix, current_temp_extension)
+        return "{}{:0>4}".format(self.temp_num_prefix, current_temp_extension)
 
     def get_sip_password_for_number(self, num):
         return num
@@ -36,10 +52,12 @@ class Dect:
         self.c.attach_user_device(u.uid, d.ppn)
         self.c.set_user_relation_fixed(u.uid)
         self.c.set_user_sipauth(u.uid, num, self.get_sip_password_for_number(num))
+        return u
 
     def run(self):
         logger.info("initialising connection to OMM")
         self._init_client()
+        self.load_temp_extensions()
 
         while True:
             msg = self.fp.queues["dect"].get()
@@ -53,6 +71,7 @@ class Dect:
                 extensions = self.fp.extensions.extensions_by_type("dect")
                 extensions_by_num = {e.num: e for e in extensions}
                 extensions_by_ipei = {e._c['dect_ipei']: e for _, e in extensions_by_num.items() if e._c.get('dect_ipei')}
+                created_tmp_ext = False
 
                 users_by_ext = {}
                 users_by_uid = {}
@@ -90,15 +109,30 @@ class Dect:
                             ui = users_by_uid.get(d.uid)
                             if ui.num != e.num:
                                 logger.debug(f'User for {d} has wrong number')
+                                if self.fp.temp_extensions.get(ui.num):
+                                    self.fp.temp_extensions.pop(ui.num)
                                 self.c.set_user_num(d.uid, e.num)
                                 self.c.set_user_sipauth(d.uid, e.num, self.get_sip_password_for_number(e.num))
+                                self.c.set_user_name(user.uid, e._c['name'])
                         else:
                             logger.debug(f'Creating and binding user for {d}')
-                            self.create_and_bind_user(d, e.num)
+                            user = self.create_and_bind_user(d, e.num)
+                            self.c.set_user_name(user.uid, e._c['name'])
 
                     elif d.relType == mitel_ommclient2.types.PPRelTypeType("Unbound"):
                         temp_num = self.get_temp_number()
                         logger.debug(f'Creating and binding tmp-user for {d}: {temp_num}')
-                        self.create_and_bind_user(d, temp_num)
+                        user = self.create_and_bind_user(d, temp_num)
+                        self.c.set_user_name(user.uid, f"Temp {temp_num[4:]}")
+                        self.fp.temp_extensions[temp_num] = {
+                                "name": f"Temp {temp_num[4:]}",
+                                "type": "dect",
+                                "trunk": False,
+                                "dialout_allowed": False,
+                            }
+                        created_tmp_ext = True
+
+                if created_tmp_ext:
+                    self.fp.queues['routing'].put({"type": "sync"})
 
         self.c.connection.close()
diff --git a/fieldpoc/fieldpoc.py b/fieldpoc/fieldpoc.py
index 8737c39..bd452d3 100644
--- a/fieldpoc/fieldpoc.py
+++ b/fieldpoc/fieldpoc.py
@@ -17,6 +17,7 @@ logger = logging.getLogger("fieldpoc.fieldpoc")
 class FieldPOC:
     config = None
     extensions = None
+    temp_extensions = {}
 
     def __init__(self, config_file_path, extensions_file_path):
         logger.info("loading configuration")
diff --git a/fieldpoc/routing.py b/fieldpoc/routing.py
index d510f9f..fddd85f 100644
--- a/fieldpoc/routing.py
+++ b/fieldpoc/routing.py
@@ -488,7 +488,9 @@ class Routing:
                 logger.info("syncing")
 
                 state_fieldpoc = BackendNerd()
-                state_fieldpoc.load(self.fp.extensions._c)
+                extensions = self.fp.extensions._c.copy()
+                extensions['extensions'].update(self.fp.temp_extensions)
+                state_fieldpoc.load(extensions)
                 state_yate = BackendYwsd()
                 state_yate.load("postgresql+psycopg2://{}:{}@{}/{}".format(
                     self.fp.config.database.username,
diff --git a/fieldpoc_extensions.json b/fieldpoc_extensions.json
index 6d4027a..cff74c5 100644
--- a/fieldpoc_extensions.json
+++ b/fieldpoc_extensions.json
@@ -95,7 +95,7 @@
       "name": "Temporary Numbers",
       "trunk": false,
       "dialout_allowed": true,
-      "type": "static"
+      "type": "temp"
     },
     "9999": {
       "name": "DECT Claim Extensions",