diff --git a/docs/lwpCall.md b/docs/lwpCall.md
index 4c4994c..ff28229 100644
--- a/docs/lwpCall.md
+++ b/docs/lwpCall.md
@@ -198,6 +198,17 @@ Returns:
 | ------------------------------------------------------------------------------------------- | ------------------------------------------------ |
 |                   string                       | User representation of the instance's remote URI |
 
+
+#### getCustomData()
+
+This returns a custom object for application usage
+
+Returns:
+
+| Type                                                                                        | Description                                      |
+| ------------------------------------------------------------------------------------------- | ------------------------------------------------ |
+|                   object                       | Custom `data` object that is extracted from its associated [RTCSession data](https://jssip.net/documentation/3.4.x/api/session/#attribute_data) |
+
 #### terminate()
 
 If the instance has a session, invokes the jssip terminate method described by
diff --git a/docs/lwpUserAgent.md b/docs/lwpUserAgent.md
index cd1fc97..e6cba5b 100644
--- a/docs/lwpUserAgent.md
+++ b/docs/lwpUserAgent.md
@@ -122,7 +122,9 @@ Updates the redial target.
 | anonymous                 | boolean | false                                                     | Whether the call should be done anonymously       |
 | options              | object  | `{receive_video: false, anonymous: false}`                 | additional call options                           |
 | options.anonymous    | boolean | false                                                     | Whether the call should be done anonymously       |
-| options.receive_video | boolean | false                                                     | Wheter the call should accept remote video stream |
+| options.receive_video | boolean | false                                                     | Whether the call should accept remote video stream |
+| options.secondary_call | boolean | false                                                     | Whether the call should not be promoted to primary when is created |
+| options.custom_data | object | `{}`                                                     | Custom data that can be accessed in the created lwpCall instance by `call.getCustomData()`  |
 
 Attempts to create a new call to target, or the redial target if non is provided
 as an argument.
diff --git a/src/lwpCall.js b/src/lwpCall.js
index 6a910ec..320160e 100644
--- a/src/lwpCall.js
+++ b/src/lwpCall.js
@@ -146,11 +146,18 @@ export default class {
 
   remoteURIUser() { 
     const session = this._getSession();
-    if (session) {
+    if (session && session._dialog._remote_uri) {
       return session._dialog._remote_uri.user;
     }
   }
 
+  getCustomData () {
+    const session = this._getSession();
+    if (session) {
+      return session.data;
+    }
+  }
+
   terminate() {
     if (this.hasSession()) {
       if (this.isEstablished()) {
diff --git a/src/lwpCallList.js b/src/lwpCallList.js
index 5a19baa..2537c68 100644
--- a/src/lwpCallList.js
+++ b/src/lwpCallList.js
@@ -33,8 +33,7 @@ export default class extends lwpRenderer {
 
   addCall(newCall) {
     const previousCall = this.getCall();
-
-    if (previousCall && !previousCall.isOnHold()) {
+    if ((previousCall && !previousCall.isOnHold()) || newCall.getCustomData().lwpSecondaryCall) {
       this._calls.push(newCall);
       this._emit("calls.added", this, newCall);
     } else {
diff --git a/src/lwpUserAgent.js b/src/lwpUserAgent.js
index 33c4d3a..428942d 100644
--- a/src/lwpUserAgent.js
+++ b/src/lwpUserAgent.js
@@ -229,7 +229,12 @@ export default class extends lwpRenderer {
       defaultOptions.rtcOfferConstraints = {
         offerToReceiveVideo: options.receive_video || false
       };
-      defaultOptions.anonymous = options.anonymous || false
+      defaultOptions.anonymous = options.anonymous || false;
+      defaultOptions.data = {
+        lwpSecondaryCall: options.secondary_call || false,
+        ...(options.custom_data || {}),
+        ...defaultOptions.data
+      }
     }
     const mediaDevices = this._libwebphone.getMediaDevices();
     const callList = this._libwebphone.getCallList();