diff --git a/CHANGELOG.md b/CHANGELOG.md
index 11b46837..927f26a8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,11 +1,16 @@
 # Change Log
 
+## [v4.23.1](https://github.com/plivo/plivo-node/tree/v4.23.1) (2021-10-13)
+**Bug Fix**
+  - LiveCallInterface.
+  - [Buy Number API](https://www.plivo.com/docs/numbers/api/phone-number#buy-a-phone-number) to support app_id
+
 ## [v4.23.0](https://github.com/plivo/plivo-node/tree/v4.23.0) (2021-10-11)
 **Features - Messaging**
 - This version includes advancements to the Messaging Interface that deals with the [Send SMS/MMS](https://www.plivo.com/docs/sms/api/message#send-a-message) interface, Creating a standard structure for `request/input` arguments to make implementation easier and incorporating support for the older interface.
 
  Example for [send SMS](https://github.com/plivo/plivo-node#send-a-message)
- 
+
 ## [v4.22.4](https://github.com/plivo/plivo-node/tree/v4.22.4) (2021-09-27)
 **Bug Fix**
   - Handle invalid destination number API response for send [SMS API](https://www.plivo.com/docs/sms/api/message/send-a-message/).
diff --git a/lib/resources/call.js b/lib/resources/call.js
index d4f4c011..b4c19446 100644
--- a/lib/resources/call.js
+++ b/lib/resources/call.js
@@ -920,8 +920,8 @@ class LiveCallInterface extends PlivoResourceInterface {
             if (action !== '' && !id) {
                 reject(new Error(this[idKey] + ' must be set'));
             }
-            client('GET', action + (id ? id + '/?status=live' : '') , {
-                    isVoiceRequest: 'true'
+            client('GET', action + id, {
+                    isVoiceRequest: 'true', status: 'live'
                 })
                 .then(response => {
                     resolve(new GetLiveCallResponse(response.body, client));
@@ -941,7 +941,7 @@ class LiveCallInterface extends PlivoResourceInterface {
         params.status = 'live'
         params.isVoiceRequest = 'true';
         return new Promise((resolve, reject) => {
-            client('GET', action+'?status=live', params)
+            client('GET', action, params)
                 .then(response => {
                     let calls = [];
                     response.body.calls.forEach(callUuid => {
@@ -997,8 +997,8 @@ class QueuedCallInterface extends PlivoResourceInterface {
                 reject(new Error(this[idKey] + ' must be set'));
             }
 
-            client('GET', action + (id ? id + '/?status=queued' : ''), {
-                    isVoiceRequest: 'true'
+            client('GET', action + id, {
+                    isVoiceRequest: 'true', status: 'queued'
                 })
                 .then(response => {
                     resolve(new GetQueuedCallResponse(response.body, client));
@@ -1015,8 +1015,8 @@ class QueuedCallInterface extends PlivoResourceInterface {
         let client = this[clientKey];
 
         return new Promise((resolve, reject) => {
-            client('GET', action+'?status=queued', {
-                    isVoiceRequest: 'true'
+            client('GET', action, {
+                    isVoiceRequest: 'true', status: 'queued'
                 })
                 .then(response => {
                     let calls = [];
diff --git a/lib/resources/numbers.js b/lib/resources/numbers.js
index 33b5a603..49b22e8a 100644
--- a/lib/resources/numbers.js
+++ b/lib/resources/numbers.js
@@ -80,10 +80,10 @@ export class PhoneNumber extends PlivoResource {
      * @promise {@link PlivoGenericResponse} return PlivoGenericResponse Object if success
      * @fail {Error} return Error
      */
-    buy(appId) {
+    buy(number,appId) {
         return new PhoneNumberInterface(this[clientKey], {
             id: this.id
-        }).buy(appId);
+        }).buy(number,appId);
     }
 }
 
diff --git a/lib/rest/request-test.js b/lib/rest/request-test.js
index abd32ec9..3f0abe0a 100644
--- a/lib/rest/request-test.js
+++ b/lib/rest/request-test.js
@@ -36,7 +36,7 @@ export function Request(config) {
 
     return new Promise((resolve, reject) => {
       // LiveCall - needs to be at top
-      if (method === 'GET' && action === 'Call/6653422-91b6-4716-9fad-9463daaeeec2/?status=live') {
+      if (method === 'GET' && action === 'Call/6653422-91b6-4716-9fad-9463daaeeec2' && params['status'] === 'live') {
         resolve({
           response: {},
           body: {
@@ -52,7 +52,7 @@ export function Request(config) {
         });
       }
 
-      else if (method === 'GET' && action === 'Call/?status=live') {
+      else if (method === 'GET' && action === 'Call/' && params['status'] === 'live') {
         resolve({
           response: {},
           body: {
diff --git a/package.json b/package.json
index 80e3efa7..38d9b64e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "plivo",
-  "version": "4.23.0",
+  "version": "4.23.1",
   "description": "A Node.js SDK to make voice calls and send SMS using Plivo and to generate Plivo XML",
   "homepage": "https://github.com/plivo/plivo-node",
   "files": [