diff --git a/ModemPool.py b/ModemPool.py
index 6187a1c..95176aa 100644
--- a/ModemPool.py
+++ b/ModemPool.py
@@ -65,8 +65,10 @@ class ModemPool:
             response = str(self._send_command(cmd, ser))
             ccid_group = re.search("[0-9F]+", response)
             ccid = ccid_group.group(0)
+            sim_position = index + 1
+            position = (slot_position - 1) * 15 + sim_position
             if phone_number:
-                self._db_manager.save_sim_info(SimInfoPojo(phone=phone_number, ccid=ccid))
+                self._db_manager.save_sim_info(SimInfoPojo(phone=phone_number, ccid=ccid, position=position))
             #         write the number to sim card's phonebook
             cmd = f'AT+CPBW={self.phone_number_position},\"{phone_number}\"\r'
             self._send_command(cmd, ser, wait_time_in_s=2)
diff --git a/main.py b/main.py
index 1c8ea6e..2f6acbc 100644
--- a/main.py
+++ b/main.py
@@ -82,7 +82,7 @@ def create_modem_for_port(port: str) -> SerialModem:
 
 def timeout_occurred(serial_modem: SerialModem):
     firebase_store_manager.save_timeout_contact(serial_modem.contact)
-    oracle_log_sender.send_log(str(serial_modem.contact.phone_number), type=LOG_APPOINTMENT_TIMEOUT)
+    oracle_log_sender.send_log(str(serial_modem.phone_number), type=LOG_APPOINTMENT_TIMEOUT)
 
 
 def start_to_handle_sms(serial_modem: SerialModem):
@@ -165,8 +165,8 @@ def start_listen():
 
 
 def read_all_the_phone_number():
-    slot_number = 3
-    slot_sum = 32
+    slot_number = 1
+    slot_sum = 31
     # card_pool.switch_to_slot(3)
 
     for i in range(slot_number, slot_sum + 1):
@@ -199,6 +199,6 @@ if __name__ == '__main__':
     init_logger()
     logger = logging.getLogger()
     logger.addHandler(logging.StreamHandler(stream=sys.stdout))
-    # read_all_the_phone_number()
-    start_listen()
-    start_book()
+    read_all_the_phone_number()
+    # start_listen()
+    # start_book()
diff --git a/pojo/SimInfoPojo.py b/pojo/SimInfoPojo.py
index 27e37b4..f38cd35 100644
--- a/pojo/SimInfoPojo.py
+++ b/pojo/SimInfoPojo.py
@@ -1,16 +1,26 @@
+import datetime
+import time
+
+
 class SimInfoPojo:
     phone: str
     ccid: str
+    update_at: int
+    position: int
 
-    def __init__(self, phone: str, ccid: str):
+    def __init__(self, phone: str, ccid: str, position, update_at: int = int(time.time())):
         self.phone = phone
         self.ccid = ccid
+        self.update_at = update_at
+        self.position = position
 
     @staticmethod
     def from_firestore_dict(source):
         phone = source['phone']
         ccid = source['ccid']
-        result = SimInfoPojo(phone=phone, ccid=ccid)
+        update_at = source['update_at']
+        position = source['position']
+        result = SimInfoPojo(phone=phone, ccid=ccid, update_at=update_at, position=position)
         result.id = id
         return result
 
@@ -18,6 +28,8 @@ class SimInfoPojo:
         dest = {
             u'phone': self.phone,
             u'ccid': self.ccid,
+            u'update_at': self.update_at,
+            u'position': self.position,
         }
 
         return dest
diff --git a/pojo/serial_modem.py b/pojo/serial_modem.py
index 99f5a3d..b987db9 100644
--- a/pojo/serial_modem.py
+++ b/pojo/serial_modem.py
@@ -2,8 +2,6 @@ from dataclasses import dataclass
 
 from gsmmodem import GsmModem
 
-from pojo.contact_pojo import ContactPojo
-
 
 @dataclass
 class SerialModem():