diff --git a/app/celery/provider_tasks.py b/app/celery/provider_tasks.py
index 3619298d9..acd2910b3 100644
--- a/app/celery/provider_tasks.py
+++ b/app/celery/provider_tasks.py
@@ -23,6 +23,10 @@ from app.models import (
     NOTIFICATION_TECHNICAL_FAILURE,
 )
 
+# This is the amount of time to wait after sending an sms message before we check the aws logs and look for delivery
+# receipts
+DELIVERY_RECEIPT_DELAY_IN_SECONDS = 120
+
 
 @notify_celery.task(
     bind=True,
@@ -96,7 +100,9 @@ def deliver_sms(self, notification_id):
         message_id = send_to_providers.send_sms_to_provider(notification)
         # We have to put it in UTC.  For other timezones, the delay
         # will be ignored and it will fire immediately (although this probably only affects developer testing)
-        my_eta = datetime.utcnow() + timedelta(seconds=300)
+        my_eta = datetime.utcnow() + timedelta(
+            seconds=DELIVERY_RECEIPT_DELAY_IN_SECONDS
+        )
         check_sms_delivery_receipt.apply_async(
             [message_id, notification_id, now], eta=my_eta, queue=QueueNames.CHECK_SMS
         )
diff --git a/docs/all.md b/docs/all.md
index 276fa649d..aa1ee5f59 100644
--- a/docs/all.md
+++ b/docs/all.md
@@ -286,7 +286,6 @@ The equivalent command if you are running the API locally:
 docker run -v $(pwd):/zap/wrk/:rw -t owasp/zap2docker-weekly zap-api-scan.py -t http://host.docker.internal:6011/docs/openapi.yml -f openapi -c zap.conf -r report.html
 ```
 
-
 # Deploying
 
 We deploy automatically to cloud.gov for production, demo, and staging environments.
@@ -727,13 +726,14 @@ Any changes to policies and procedures defined both here and in the SSPP must be
 that the security of the system is maintained.
 
 1. [Alerts, Notifications, Monitoring](#alerts)
-1. [Restaging Apps](#restaging-apps)
-1. [Smoke-testing the App](#smoke-testing)
-1. [Configuration Management](#cm)
-1. [DNS Changes](#dns)
-1. [Known Gotchas](#gotcha)
-1. [User Account Management](#ac)
-1. [SMS Phone Number Management](#phone-numbers)
+2. [Restaging Apps](#restaging-apps)
+3. [Smoke-testing the App](#smoke-testing)
+4. [Simulated bulk send testing](#simulated-bulk-send-testing)
+5. [Configuration Management](#cm)
+6. [DNS Changes](#dns)
+7. [Known Gotchas](#gotcha)
+8. [User Account Management](#ac)
+9. [SMS Phone Number Management](#phone-numbers)
 
 ## <a name="alerts"></a> Alerts, Notifications, Monitoring
 
@@ -792,6 +792,27 @@ To ensure that notifications are passing through the application properly, the f
 1. Log into the app. This will verify SNS integration for a one-off message.
 1. Upload a CSV and schedule send for the soonest time after "Now". This will verify S3 connections as well as scheduler and worker processes are running properly.
 
+## <a name="simulated-bulk-send-testing"></a> Simulated bulk send testing
+
+Assuming that you have followed all steps to set up localstack successfully (see docs/localstack.md), do the following:
+
+1. Create an sms template that requires no inputs from the user (i.e. the csv file will only have phone numbers)
+2. Uncomment the test 'test_generate_csv_for_bulk_testing' in app/test_utils.py
+3. Run `make test` on this project.  This will generate the csv file for the bulk test.
+4. If you are not a platform admin for your service when you run locally, do the following:
+   - >psql -d notification_api
+   - update users set platform_admin='t';
+   - \q
+   - sign out
+   - sign in.
+   - Go to settings and set the organization for your service to 'Broadcast services' (scroll down to platform admin)
+   - Go to settings and set your service to 'live' (scroll down to platform admin)
+5. Run your app 'locally'.  I.e. run `make run-procfile` on this project and `make run-flask` on the admin project
+6. Sign in.  Verify you are running with localstack.  I.e., you do NOT receive a text message on sign in.  Instead, 
+   you see your authentication code in green in the api logs
+7. Go to send messages and upload your csv file and send your 100000 messages
+
+
 ## <a name="cm"></a> Configuration Management
 
 Also known as: **How to move code from my machine to production**
diff --git a/tests/app/test_utils.py b/tests/app/test_utils.py
index 77ea48688..dff502c4a 100644
--- a/tests/app/test_utils.py
+++ b/tests/app/test_utils.py
@@ -90,3 +90,13 @@ def test_get_uuid_string_or_none():
 
 def test_get_public_notify_type_text():
     assert get_public_notify_type_text(UPLOAD_DOCUMENT) == "document"
+
+
+# This method is used for simulating bulk sends.  We use localstack and run on a developer's machine to do the
+# simulation.  Please see docs->bulk_testing.md for instructions.
+# def test_generate_csv_for_bulk_testing():
+#     f = open("bulktest_100000.csv", "w")
+#     f.write("phone number\n")
+#     for _ in range(0, 100000):
+#         f.write("16615555555\n")
+#     f.close()