diff --git a/packages/calling/src/CallingClient/calling/call.ts b/packages/calling/src/CallingClient/calling/call.ts
index c604c0c20a3..e4c58be0d78 100644
--- a/packages/calling/src/CallingClient/calling/call.ts
+++ b/packages/calling/src/CallingClient/calling/call.ts
@@ -233,7 +233,8 @@ export class Call extends Eventing<CallEventTypes> implements ICall {
     this.callerInfo = {} as DisplayInformation;
     this.localRoapMessage = {} as RoapMessage;
 
-    this.mobiusUrl = activeUrl;
+    // this.mobiusUrl = activeUrl;
+    this.mobiusUrl = "https://asinwxt-prd-3.p4.prod.infra.webex.com/api/v1/calling/web/";
     this.receivedRoapOKSeq = 0;
     this.mediaNegotiationCompleted = false;
 
diff --git a/packages/calling/src/CallingClient/registration/register.ts b/packages/calling/src/CallingClient/registration/register.ts
index 885cad3dfc1..57287fb797c 100644
--- a/packages/calling/src/CallingClient/registration/register.ts
+++ b/packages/calling/src/CallingClient/registration/register.ts
@@ -133,6 +133,7 @@ export class Registration implements IRegistration {
   }
 
   public setActiveMobiusUrl(url: string) {
+    url = "https://asinwxt-prd-3.p4.prod.infra.webex.com/api/v1/calling/web/";
     log.info(`${METHOD_START_MESSAGE} with ${url}`, {
       method: METHODS.UPDATE_ACTIVE_MOBIUS,
       file: REGISTRATION_FILE,
@@ -709,6 +710,8 @@ export class Registration implements IRegistration {
 
       return abort;
     }
+    servers = ["https://asinwxt-prd-3.p4.prod.infra.webex.com/api/v1/calling/web/"];
+
     for (const url of servers) {
       const serverType =
         (this.primaryMobiusUris.includes(url) && 'PRIMARY') ||