diff --git a/manager/views.py b/manager/views.py
index 7ffd9f5..9b8b89d 100644
--- a/manager/views.py
+++ b/manager/views.py
@@ -18,6 +18,8 @@
 from .filters import WaitingFilter
 from rest_framework.decorators import action
 from waiting.tasks import check_ready_to_confirm
+from utils.sendmessages import sendsms
+from django.utils import timezone
 
 # FAQ 리스트 조회만 가능한 ViewSet
 class FAQViewSet(mixins.ListModelMixin, viewsets.GenericViewSet):
@@ -151,6 +153,9 @@ def action(self, request, *args, **kwargs):
                 )
             waiting.waiting_status = 'arrived'
             waiting.confirmed_at = timezone.now()
+            # 문자 메시지 발송
+            phone_number = waiting.user.phone_number
+            sendsms(phone_number, f"[라인나우] 입장 순서가 되었어요. 3분 내로 입장을 확정해 주세요!")
         elif action == 'cancel':
             if waiting.waiting_status in ['canceled', 'time_over_canceled']:
                 return custom_response(
@@ -161,6 +166,9 @@ def action(self, request, *args, **kwargs):
                 )
             waiting.waiting_status = 'canceled'
             waiting.canceled_at = timezone.now()
+            # 문자 메시지 발송
+            phone_number = waiting.user.phone_number
+            sendsms(phone_number, f"[라인나우] 부스 사정으로 인해, 대기가 취소되었어요")
         else:
             return custom_response(
                 data=None,
diff --git a/sms/urls.py b/sms/urls.py
index b3a1c19..bc9fa95 100644
--- a/sms/urls.py
+++ b/sms/urls.py
@@ -1,12 +1,11 @@
 from django.urls import path, include
 from rest_framework.routers import DefaultRouter
-from .views import *
 
 app_name = 'sms'
 
-router = DefaultRouter()
-router.register(r'sendsms', sendsms, basename='sendsms')
+#router = DefaultRouter()
+#router.register(r'sendsms', sendsms, basename='sendsms')
 
 urlpatterns = [
-    path('sms/sendsms', sendsms, name='sendsms')
+    #path('sms/sendsms', sendsms, name='sendsms')
 ]
\ No newline at end of file
diff --git a/utils/sendmessages.py b/utils/sendmessages.py
new file mode 100644
index 0000000..b5d28ad
--- /dev/null
+++ b/utils/sendmessages.py
@@ -0,0 +1,59 @@
+from rest_framework import status
+from utils.responses import custom_response
+from django.conf import settings
+import requests, re
+
+SSODAA_BASE_URL = settings.SSODAA_BASE_URL
+SEND_PHONE = settings.SEND_PHONE
+
+# 문자 발송하기
+def sendsms(dest_phone, msg_body):
+    # 데이터 형식 검증
+    phone_pattern = re.compile(r'^\d{10,11}$')  # 10자리 또는 11자리 숫자만
+    if not phone_pattern.match(dest_phone):
+        return {
+            "message": "Invalid destination phone number.",
+        }
+
+    if not isinstance(msg_body, str):
+        return {
+            "message": "Invalid message content.",
+        }
+    
+
+    headers = {
+        'x-api-key': settings.SMS_API_KEY,
+        'Content-Type': 'application/json; charset=utf-8'
+    }
+
+    data = {
+        "token_key": settings.SMS_TOKEN_KEY,
+        "msg_type": 'sms',
+        "dest_phone": dest_phone,
+        "send_phone": SEND_PHONE,
+        "msg_body": msg_body,
+    }
+    print(data)
+    return custom_response(data=data, message="perfect", code=status.HTTP_200_OK)
+    """
+    try:
+        url = f"{SSODAA_BASE_URL}/sms/send/sms"
+        response = requests.post(url, json=data, headers=headers)
+        response = response.json()
+        status_code = int(response.get('code'))
+
+        if status_code == 200:
+            content = response.get('content')
+            data = {
+                "sent_messages":content.get('sent_messages'),
+                "send_phone":content.get('send_phone'),
+            }
+            return custom_response(data=data, message=content.get('message'), code=status.HTTP_200_OK)
+        
+        else:
+            error = response.get('error')
+            return custom_response(message=error, code=status.HTTP_403_FORBIDDEN, success=False)
+
+    except requests.exceptions.RequestException:
+        return custom_response(message="Failed to send messages.", code=status.HTTP_400_BAD_REQUEST, success=False)
+    """
\ No newline at end of file
diff --git a/waiting/tasks.py b/waiting/tasks.py
index 9cf4687..b6857c2 100644
--- a/waiting/tasks.py
+++ b/waiting/tasks.py
@@ -1,5 +1,6 @@
 from celery import shared_task
 from django.utils import timezone
+from utils.sendmessages import sendsms
 
 @shared_task
 def check_ready_to_confirm(waiting_id):
@@ -10,17 +11,27 @@ def check_ready_to_confirm(waiting_id):
         # 3분이 지났으면 확인하고 취소 처리
         if waiting.is_ready_to_confirm_expired() and waiting.waiting_status == 'ready_to_confirm':
             waiting.set_time_over_canceled()  # 시간 초과로 취소 처리
+            # 문자 메시지 발송
+            phone_number = waiting.user.phone_number
+            print(phone_number)
+            sendsms(phone_number, f"[라인나우] 3분 내에 부스 입장을 확정하지 않아, 대기가 취소되었어요")
     except Waiting.DoesNotExist:
         pass
 
 @shared_task
 def check_confirmed(waiting_id):
+    print("기다림은 끝")
     """10분 후 입장 확정 상태에서 도착하지 않으면 time_over_canceled 상태로 변경"""
     from .models import Waiting
     try:
+        print("데이터가져와")
         waiting = Waiting.objects.get(pk=waiting_id)
         # 10분이 지났으면 취소 처리
         if waiting.is_confirmed_expired() and waiting.waiting_status == 'confirmed':
             waiting.set_time_over_canceled()  # 시간 초과로 취소 처리
+            # 문자 메시지 발송
+            phone_number = waiting.user.phone_number
+            print(phone_number)
+            sendsms(phone_number, f"[라인나우] 10분 내에 부스에 입장하지 않아, 대기가 취소되었어요")
     except Waiting.DoesNotExist:
         pass
\ No newline at end of file