diff --git a/app/celery/research_mode_tasks.py b/app/celery/research_mode_tasks.py
index d7ecb399e..274fa3fe4 100644
--- a/app/celery/research_mode_tasks.py
+++ b/app/celery/research_mode_tasks.py
@@ -55,7 +55,8 @@ def make_request(notification_type, provider, data, headers):
             "POST",
             api_call,
             headers=headers,
-            data=data
+            data=data,
+            timeout=5
         )
         response.raise_for_status()
     except RequestException as e:
diff --git a/app/clients/sms/firetext.py b/app/clients/sms/firetext.py
index 911c88bda..17e09e967 100644
--- a/app/clients/sms/firetext.py
+++ b/app/clients/sms/firetext.py
@@ -97,7 +97,8 @@ class FiretextClient(SmsClient):
             response = request(
                 "POST",
                 self.url,
-                data=data
+                data=data,
+                timeout=60
             )
             response.raise_for_status()
             try:
diff --git a/app/clients/sms/mmg.py b/app/clients/sms/mmg.py
index 642a247a9..7e3a18e47 100644
--- a/app/clients/sms/mmg.py
+++ b/app/clients/sms/mmg.py
@@ -1,7 +1,7 @@
 import json
 from monotonic import monotonic
 from requests import (request, RequestException)
-
+from requests.exceptions import HTTPError
 from app.clients import (STATISTICS_DELIVERED, STATISTICS_FAILURE)
 from app.clients.sms import (SmsClient, SmsClientResponseException)
 
@@ -104,7 +104,8 @@ class MMGClient(SmsClient):
                 headers={
                     'Content-Type': 'application/json',
                     'Authorization': 'Basic {}'.format(self.api_key)
-                }
+                },
+                timeout=60
             )
 
             response.raise_for_status()
@@ -117,6 +118,9 @@ class MMGClient(SmsClient):
         except RequestException as e:
             self.record_outcome(False, e.response)
             raise MMGClientResponseException(response=e.response, exception=e)
+        except HTTPError as e:
+            self.record_outcome(False, e.response)
+            raise MMGClientResponseException(response=e.response, exception=e)
         finally:
             elapsed_time = monotonic() - start_time
             self.statsd_client.timing("clients.mmg.request-time", elapsed_time)
diff --git a/app/notifications/notifications_sms_callback.py b/app/notifications/notifications_sms_callback.py
index 3c569e158..c1eacdee4 100644
--- a/app/notifications/notifications_sms_callback.py
+++ b/app/notifications/notifications_sms_callback.py
@@ -11,6 +11,8 @@ register_errors(sms_callback_blueprint)
 
 @sms_callback_blueprint.route('/mmg', methods=['POST'])
 def process_mmg_response():
+    from time import sleep
+    sleep(20)
     client_name = 'MMG'
     data = json.loads(request.data)
     errors = validate_callback_data(data=data,