diff --git a/packages/voice/tests/rest/v1/applications/applications.steps.ts b/packages/voice/tests/rest/v1/applications/applications.steps.ts
new file mode 100644
index 00000000..2a896c81
--- /dev/null
+++ b/packages/voice/tests/rest/v1/applications/applications.steps.ts
@@ -0,0 +1,112 @@
+import { ApplicationsApi, VoiceService, Voice  } from '../../../../src';
+import { Given, When, Then } from '@cucumber/cucumber';
+import * as assert from 'assert';
+
+let applicationsApi: ApplicationsApi;
+let listNumbersResponse: Voice.ListNumbersResponse;
+let assignNumbersResponse: void;
+let unassignNumberResponse: void;
+let queryNumberResponse: Voice.QueryNumberResponse;
+let callbackURLs: Voice.GetCallbacks;
+let updateCallbackURLsResponse: void;
+
+Given('the Voice service "Applications" is available', () => {
+  const voiceService = new VoiceService({
+    applicationKey: 'appKey',
+    applicationSecret: 'appSecret',
+    voiceApplicationManagementHostname: 'http://localhost:3020',
+  });
+  applicationsApi = voiceService.applications;
+});
+
+When('I send a request to get information about my owned numbers', async () => {
+  listNumbersResponse = await applicationsApi.listNumbers({});
+});
+
+Then('the response contains details about the numbers that I own', () => {
+  assert.ok(listNumbersResponse.numbers);
+  assert.equal(listNumbersResponse.numbers.length, 4);
+  const number1 = listNumbersResponse.numbers[0];
+  assert.equal(number1.number, '+12012222222');
+  assert.equal(number1.applicationkey, undefined);
+  assert.equal(number1.capability, 'voice');
+  const number2 = listNumbersResponse.numbers[1];
+  assert.equal(number2.number, '+12013333333');
+  assert.equal(number2.applicationkey, 'ba5eba11-1dea-1337-babe-5a1ad00d1eaf');
+  assert.equal(number2.capability, 'voice');
+});
+
+When('I send a request to assign some numbers to a Voice Application', async () => {
+  assignNumbersResponse = await applicationsApi.assignNumbers({
+    assignNumbersRequestBody: {
+      numbers: [
+        '+12012222222',
+      ],
+      applicationkey: 'f00dcafe-abba-c0de-1dea-dabb1ed4caf3',
+      capability: 'voice',
+    },
+  });
+});
+
+Then('the assign numbers response contains no data', () => {
+  assert.deepEqual(assignNumbersResponse, {});
+});
+
+When('I send a request to unassign a number from a Voice Application', async () => {
+  unassignNumberResponse = await applicationsApi.unassignNumber({
+    unassignNumbersRequestBody: {
+      number: '+12012222222',
+    },
+  });
+});
+
+Then('the unassign number response contains no data', () => {
+  assert.deepEqual(unassignNumberResponse, {});
+});
+
+When('I send a request to get information about a specific number', async () => {
+  queryNumberResponse = await applicationsApi.queryNumber({
+    number: '+12015555555',
+  });
+});
+
+Then('the response contains details about the specific number', () => {
+  assert.ok(queryNumberResponse.number);
+  const number = queryNumberResponse.number;
+  assert.equal(number.countryId, 'US');
+  assert.equal(number.numberType, 'Fixed');
+  assert.equal(number.normalizedNumber, '+12015555555');
+  assert.equal(number.restricted, true);
+  const rate: Voice.VoicePrice = {
+    currencyId: 'USD',
+    amount: 0.0100,
+  };
+  assert.deepEqual(number.rate, rate);
+});
+
+When('I send a request to get the callback URLs associated to an application', async () => {
+  callbackURLs = await applicationsApi.getCallbackURLs({
+    applicationkey: 'f00dcafe-abba-c0de-1dea-dabb1ed4caf3',
+  });
+});
+
+Then('the response contains callback URLs details', () => {
+  assert.ok(callbackURLs.url);
+  assert.equal(callbackURLs.url.primary, 'https://my.callback-server.com/voice');
+  assert.equal(callbackURLs.url.fallback, 'https://my.fallback-server.com/voice');
+});
+
+When('I send a request to update the callback URLs associated to an application', async () => {
+  updateCallbackURLsResponse = await applicationsApi.updateCallbackURLs({
+    applicationkey: 'f00dcafe-abba-c0de-1dea-dabb1ed4caf3',
+    updateCallbacksRequestBody: {
+      url: {
+        primary: 'https://my-new.callback-server.com/voice',
+      },
+    },
+  });
+});
+
+Then('the update callback URLs response contains no data', () => {
+  assert.deepEqual(updateCallbackURLsResponse, {});
+});