diff --git a/app/main/views/manage_users.py b/app/main/views/manage_users.py
index c0b85ab99..9cdba07fd 100644
--- a/app/main/views/manage_users.py
+++ b/app/main/views/manage_users.py
@@ -22,6 +22,7 @@ from app.main.forms import (
     InviteUserForm,
     PermissionsForm,
     SearchUsersForm,
+    ChangeMobileNumberForm
 )
 from app.models.user import permissions
 from app.utils import redact_mobile_number, user_has_permissions
@@ -203,11 +204,21 @@ def confirm_edit_user_email(service_id, user_id):
     )
 
 
-@main.route("/services/<service_id>/users/<user_id>/edit-phone-number", methods=['GET', 'POST'])
+@main.route("/services/<service_id>/users/<user_id>/edit-mobile-number", methods=['GET', 'POST'])
 @login_required
 @user_has_permissions('manage_service')
-def edit_user_phone_number(service_id, user_id):
-    return True
+def edit_user_mobile_number(service_id, user_id):
+    user = user_api_client.get_user(user_id)
+    user_mobile_number = redact_mobile_number(user.mobile_number)
+
+    form = ChangeMobileNumberForm(mobile_number=user_mobile_number)
+
+    return render_template(
+        'views/manage-users/edit-user-mobile.html',
+        user=user,
+        form=form,
+        service_id=service_id
+    )
 
 
 @main.route("/services/<service_id>/cancel-invited-user/<uuid:invited_user_id>", methods=['GET'])
diff --git a/app/templates/views/edit-user-permissions.html b/app/templates/views/edit-user-permissions.html
index 84b92ba27..17a4ef88f 100644
--- a/app/templates/views/edit-user-permissions.html
+++ b/app/templates/views/edit-user-permissions.html
@@ -17,8 +17,8 @@
     {{ user.email_address }}&emsp;<a href="{{ url_for('.edit_user_email', service_id=current_service.id, user_id=user.id)}}">Change</a>
   </p>
   {% if mobile_number %}
-    <p id="user_phone_number">
-      {{ mobile_number }}&emsp;<a href="{{ url_for('.edit_user_phone_number', service_id=current_service.id, user_id=user.id)}}">Change</a>
+    <p id="user_mobile_number">
+      {{ mobile_number }}&emsp;<a href="{{ url_for('.edit_user_mobile_number', service_id=current_service.id, user_id=user.id)}}">Change</a>
     </p>
   {% endif %}
   <div class="grid-row">
diff --git a/tests/app/main/views/test_manage_users.py b/tests/app/main/views/test_manage_users.py
index a1244dae9..b41bb76f3 100644
--- a/tests/app/main/views/test_manage_users.py
+++ b/tests/app/main/views/test_manage_users.py
@@ -1011,7 +1011,7 @@ def test_confirm_edit_user_email_with_no_permission_aborts():
     pass
 
 
-def test_edit_user_permissions_page_displays_redacted_phone_number_and_change_link(
+def test_edit_user_permissions_page_displays_redacted_mobile_number_and_change_link(
     client_request,
     active_user_with_permissions,
     service_one,
@@ -1027,29 +1027,46 @@ def test_edit_user_permissions_page_displays_redacted_phone_number_and_change_li
     )
 
     assert user.name in page.find('h1').text
-    phone_number_paragraph = page.select('p[id=user_phone_number]')[0]
-    assert '0770****762' in phone_number_paragraph.text
-    change_link = phone_number_paragraph.findChild()
-    assert change_link.attrs['href'] == '/services/{}/users/{}/edit-phone-number'.format(
+    mobile_number_paragraph = page.select('p[id=user_mobile_number]')[0]
+    assert '0770****762' in mobile_number_paragraph.text
+    change_link = mobile_number_paragraph.findChild()
+    assert change_link.attrs['href'] == '/services/{}/users/{}/edit-mobile-number'.format(
         service_one['id'], user.id
     )
 
 
-def test_edit_user_phone_number_page():
+def test_edit_user_mobile_number_page(
+    client_request,
+    active_user_with_permissions,
+    service_one,
+    mocker
+):
+    user = active_user_with_permissions
+    mocker.patch('app.user_api_client.get_user', return_value=user)
+
+    page = client_request.get(
+        'main.edit_user_mobile_number',
+        service_id=service_one['id'],
+        user_id=user.id
+    )
+
+    assert page.find('h1').text == "Change team member’s mobile number"
+    assert page.select('p[id=user_name]')[0].text == "This will change the mobile number for {}.".format(user.name)
+    assert page.select('input[name=mobile_number]')[0].attrs["value"] == "0770****762"
+    assert page.select('button[type=submit]')[0].text == "Save"
+
+
+def test_edit_user_mobile_number_redirects_to_confirmation():
     pass
 
 
-def test_edit_user_phone_number_redirects_to_confirmation():
+def test_confirm_edit_user_mobile_number_page():
     pass
 
 
-def test_confirm_edit_user_phone_number_page():
+def test_confirm_edit_user_mobile_number_changes_user_mobile_number():
     pass
 
 
-def test_confirm_edit_user_phone_number_changes_user_mobile_number():
-    pass
-
-
-def test_confirm_edit_user_phone_number_with_no_permission_aborts():
+def test_confirm_edit_user_mobile_number_with_no_permission_aborts():
     pass