diff --git a/contact.xlsx b/contact.xlsx
index 6f51c64..6054224 100644
Binary files a/contact.xlsx and b/contact.xlsx differ
diff --git a/main.py b/main.py
index a423eb7..9fd84ca 100644
--- a/main.py
+++ b/main.py
@@ -34,16 +34,6 @@ def get_devices_ports() -> list:
     return MODEM_POOL_PORTS
 
 
-def has_sim(ser) -> bool:
-    # check pin
-    cmd_check_pin = "AT+cpin?\r"
-    msg = send_command(cmd_check_pin, ser)
-    if b'OK' in msg:
-        return True
-    else:
-        return False
-
-
 def send_command(cmd: str, ser, wait_time_in_s: int = 0) -> bytes:
     ser.write(cmd.encode())
     msg = ser.read(100)
@@ -57,11 +47,6 @@ def send_command(cmd: str, ser, wait_time_in_s: int = 0) -> bytes:
     return msg
 
 
-def get_phone_number(ser):
-    cmd = "AT+CNUM\r"
-    send_command(cmd, ser)
-
-
 def create_modem_for_port(port: str) -> Union[SerialModem, None]:
     logger.info('Initializing modem... for ' + port)
     # Uncomment the following line to see what the modem is doing:
diff --git a/notification/mail.py b/notification/mail.py
deleted file mode 100644
index 084e273..0000000
--- a/notification/mail.py
+++ /dev/null
@@ -1,14 +0,0 @@
-from sqlalchemy import Column, String
-from sqlalchemy.orm import declarative_base
-
-Base = declarative_base()
-
-
-class Mail(Base):
-    __tablename__ = 'mailer'
-    id_key = Column(String(255), primary_key=True, nullable=False)
-    secret_key = Column(String(255), nullable=False)
-    recipient_list = Column(String(255), nullable=False)
-
-    def __repr__(self):
-        return "Mail id_key:% s secret_key:% s recipient_list:% s" % (self.id_key, self.secret_key, self.recipient_list)