diff --git a/forms/admin_register_with_sgx.rb b/forms/admin_register_with_sgx.rb
new file mode 100644
index 0000000000000000000000000000000000000000..1e2b226245b5dd883a7afc593dd25de975f31a68
--- /dev/null
+++ b/forms/admin_register_with_sgx.rb
@@ -0,0 +1,11 @@
+form!
+title "Register with SGX"
+instructions "DO NOT use this for simple number change"
+
+field(
+	var: "tel",
+	type: "text-single",
+	datatype: "html:tel",
+	label: "Number to use?",
+	value: ""
+)
diff --git a/lib/admin_actions/register_with_sgx.rb b/lib/admin_actions/register_with_sgx.rb
index 5fb7ec1dc4e3e3713821d5a35032367d9c69bcce..6321060f4ac95aaa1a4dedf5b643f79e1c436593 100644
--- a/lib/admin_actions/register_with_sgx.rb
+++ b/lib/admin_actions/register_with_sgx.rb
@@ -2,8 +2,13 @@
 
 class AdminAction
 	class RegisterWithSgx
-		def self.call(customer, **)
-			customer.register!
+		def self.call(customer, reply:, **)
+			reply.call(
+				FormTemplate.render("admin_register_with_sgx")
+			).then { |response|
+				tel = response.form.field("tel").value.to_s
+				customer.register!(tel)
+			}
 		end
 	end
 end