diff --git a/packages/backend/src/apps/twilio/dynamic-data/index.ts b/packages/backend/src/apps/twilio/dynamic-data/index.ts
new file mode 100644
index 00000000..d20d4347
--- /dev/null
+++ b/packages/backend/src/apps/twilio/dynamic-data/index.ts
@@ -0,0 +1,3 @@
+import listIncomingPhoneNumbers from './list-incoming-phone-numbers';
+
+export default [listIncomingPhoneNumbers];
diff --git a/packages/backend/src/apps/twilio/dynamic-data/list-incoming-phone-numbers/index.ts b/packages/backend/src/apps/twilio/dynamic-data/list-incoming-phone-numbers/index.ts
new file mode 100644
index 00000000..0e36af65
--- /dev/null
+++ b/packages/backend/src/apps/twilio/dynamic-data/list-incoming-phone-numbers/index.ts
@@ -0,0 +1,56 @@
+import { IGlobalVariable, IJSONObject } from '@automatisch/types';
+
+type TResponse = {
+  data: IJSONObject[];
+  error?: IJSONObject;
+};
+
+type TIncomingPhoneNumber = {
+  phone_number: string;
+  friendly_name: string;
+  sid: string;
+  capabilities: {
+    sms: boolean;
+  };
+};
+
+type TResponseData = {
+  incoming_phone_numbers: TIncomingPhoneNumber[];
+  next_page_uri: string;
+};
+
+export default {
+  name: 'List incoming phone numbers',
+  key: 'listIncomingPhoneNumbers',
+
+  async run($: IGlobalVariable) {
+    const valueType = $.step.parameters.valueType as string;
+    const isSid = valueType === 'sid';
+
+    const aggregatedResponse: TResponse = { data: [] };
+    let pathname = `/2010-04-01/Accounts/${$.auth.data.accountSid}/IncomingPhoneNumbers.json`;
+
+    do {
+      const response = await $.http.get<TResponseData>(pathname);
+
+      for (const incomingPhoneNumber of response.data.incoming_phone_numbers) {
+        if (incomingPhoneNumber.capabilities.sms === false) {
+          continue;
+        }
+
+        const friendlyName = incomingPhoneNumber.friendly_name;
+        const phoneNumber = incomingPhoneNumber.phone_number;
+        const name = [friendlyName, phoneNumber].filter(Boolean).join(' - ');
+
+        aggregatedResponse.data.push({
+          value: isSid ? incomingPhoneNumber.sid : phoneNumber,
+          name,
+        });
+      }
+
+      pathname = response.data.next_page_uri;
+    } while (pathname);
+
+    return aggregatedResponse;
+  },
+};
diff --git a/packages/backend/src/apps/twilio/index.ts b/packages/backend/src/apps/twilio/index.ts
index b3d959f5..f1684dd5 100644
--- a/packages/backend/src/apps/twilio/index.ts
+++ b/packages/backend/src/apps/twilio/index.ts
@@ -3,6 +3,7 @@ import addAuthHeader from './common/add-auth-header';
 import auth from './auth';
 import triggers from './triggers';
 import actions from './actions';
+import dynamicData from './dynamic-data';
 
 export default defineApp({
   name: 'Twilio',
@@ -17,4 +18,5 @@ export default defineApp({
   auth,
   triggers,
   actions,
+  dynamicData,
 });
diff --git a/packages/backend/src/apps/twilio/triggers/receive-sms/index.ts b/packages/backend/src/apps/twilio/triggers/receive-sms/index.ts
index f434247b..25785add 100644
--- a/packages/backend/src/apps/twilio/triggers/receive-sms/index.ts
+++ b/packages/backend/src/apps/twilio/triggers/receive-sms/index.ts
@@ -1,23 +1,73 @@
+import { URLSearchParams } from 'node:url';
+import isEmpty from 'lodash/isEmpty';
 import defineTrigger from '../../../../helpers/define-trigger';
 import fetchMessages from './fetch-messages';
 
 export default defineTrigger({
   name: 'Receive SMS',
   key: 'receiveSms',
-  pollInterval: 15,
+  type: 'webhook',
   description: 'Triggers when a new SMS is received.',
   arguments: [
     {
       label: 'To Number',
-      key: 'toNumber',
-      type: 'string',
+      key: 'phoneNumberSid',
+      type: 'dropdown' as const,
       required: true,
       description:
         'The number to receive the SMS on. It should be a Twilio number.',
+      variables: false,
+      source: {
+        type: 'query',
+        name: 'getDynamicData',
+        arguments: [
+          {
+            name: 'key',
+            value: 'listIncomingPhoneNumbers',
+          },
+          {
+            name: 'valueType',
+            value: 'sid',
+          }
+        ],
+      },
     },
   ],
 
-  async run($) {
+  async testRun($) {
     await fetchMessages($);
+
+    if (!isEmpty($.lastExecutionStep?.dataOut)) {
+      $.pushTriggerItem({
+        raw: $.lastExecutionStep.dataOut,
+        meta: {
+          internalId: '',
+        }
+      });
+    }
+  },
+
+  async registerHook($) {
+    const phoneNumberSid = $.step.parameters.phoneNumberSid as string;
+    const payload = new URLSearchParams({
+      SmsUrl: $.webhookUrl,
+    }).toString();
+
+    await $.http.post(
+      `/2010-04-01/Accounts/${$.auth.data.accountSid}/IncomingPhoneNumbers/${phoneNumberSid}.json`,
+      payload
+    );
+  },
+
+  async unregisterHook($) {
+    const toNumber = $.step.parameters.toNumber as string;
+    const payload = new URLSearchParams({
+      SmsUrl: '',
+    }).toString();
+
+    await $.http.post(
+      `/2010-04-01/Accounts/${$.auth.data.accountSid}/IncomingPhoneNumbers/PN${toNumber}.json`,
+      payload
+    );
   },
 });