diff --git a/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/SignalCallManager.java b/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/SignalCallManager.java
index 081ac2da8..f1d4429c7 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/SignalCallManager.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/SignalCallManager.java
@@ -5,6 +5,7 @@ import static org.thoughtcrime.securesms.events.WebRtcViewModel.State.CALL_INCOM
 import static org.thoughtcrime.securesms.events.WebRtcViewModel.State.NETWORK_FAILURE;
 import static org.thoughtcrime.securesms.events.WebRtcViewModel.State.NO_SUCH_USER;
 import static org.thoughtcrime.securesms.events.WebRtcViewModel.State.UNTRUSTED_IDENTITY;
+import static org.thoughtcrime.securesms.service.webrtc.WebRtcUtil.getUrgencyFromCallUrgency;
 
 import android.app.Application;
 import android.content.Context;
@@ -589,10 +590,10 @@ public final class SignalCallManager implements CallManager.Observer, GroupCall.
   }
 
   @Override
-  public void onSendCallMessage(@NonNull UUID uuid, @NonNull byte[] bytes, @NonNull CallManager.CallMessageUrgency unused) {
+  public void onSendCallMessage(@NonNull UUID uuid, @NonNull byte[] bytes, @NonNull CallManager.CallMessageUrgency urgency) {
     Log.i(TAG, "onSendCallMessage():");
 
-    OpaqueMessage            opaqueMessage = new OpaqueMessage(bytes);
+    OpaqueMessage            opaqueMessage = new OpaqueMessage(bytes, getUrgencyFromCallUrgency(urgency));
     SignalServiceCallMessage callMessage   = SignalServiceCallMessage.forOpaque(opaqueMessage, true, null);
 
     networkExecutor.execute(() -> {
@@ -616,7 +617,7 @@ public final class SignalCallManager implements CallManager.Observer, GroupCall.
   }
 
   @Override
-  public void onSendCallMessageToGroup(@NonNull byte[] groupIdBytes, @NonNull byte[] message, @NonNull CallManager.CallMessageUrgency unused) {
+  public void onSendCallMessageToGroup(@NonNull byte[] groupIdBytes, @NonNull byte[] message, @NonNull CallManager.CallMessageUrgency urgency) {
     Log.i(TAG, "onSendCallMessageToGroup():");
 
     networkExecutor.execute(() -> {
@@ -629,7 +630,7 @@ public final class SignalCallManager implements CallManager.Observer, GroupCall.
                                                                     .filter(r -> !r.isBlocked())
                                                                     .collect(Collectors.toList())));
 
-        OpaqueMessage            opaqueMessage = new OpaqueMessage(message);
+        OpaqueMessage            opaqueMessage = new OpaqueMessage(message, getUrgencyFromCallUrgency(urgency));
         SignalServiceCallMessage callMessage   = SignalServiceCallMessage.forOutgoingGroupOpaque(groupId.getDecodedId(), System.currentTimeMillis(), opaqueMessage, true, null);
         RecipientAccessList      accessList    = new RecipientAccessList(recipients);
 
diff --git a/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/WebRtcUtil.java b/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/WebRtcUtil.java
index 989553a74..7f4901069 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/WebRtcUtil.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/WebRtcUtil.java
@@ -17,6 +17,7 @@ import org.whispersystems.libsignal.ecc.Curve;
 import org.whispersystems.libsignal.ecc.ECPublicKey;
 import org.whispersystems.signalservice.api.messages.calls.HangupMessage;
 import org.whispersystems.signalservice.api.messages.calls.OfferMessage;
+import org.whispersystems.signalservice.api.messages.calls.OpaqueMessage;
 
 /**
  * Calling specific helpers.
@@ -64,6 +65,13 @@ public final class WebRtcUtil {
     }
   }
 
+  public static OpaqueMessage.Urgency getUrgencyFromCallUrgency(@NonNull CallManager.CallMessageUrgency urgency) {
+    if (urgency == CallManager.CallMessageUrgency.HANDLE_IMMEDIATELY) {
+      return OpaqueMessage.Urgency.HANDLE_IMMEDIATELY;
+    }
+    return OpaqueMessage.Urgency.DROPPABLE;
+  }
+
   public static void enableSpeakerPhoneIfNeeded(@NonNull Context context, boolean enable) {
     if (!enable) {
       return;
diff --git a/libsignal/service/src/main/java/org/whispersystems/signalservice/api/SignalServiceMessageSender.java b/libsignal/service/src/main/java/org/whispersystems/signalservice/api/SignalServiceMessageSender.java
index 9b46511df..d7dfcc5f6 100644
--- a/libsignal/service/src/main/java/org/whispersystems/signalservice/api/SignalServiceMessageSender.java
+++ b/libsignal/service/src/main/java/org/whispersystems/signalservice/api/SignalServiceMessageSender.java
@@ -46,6 +46,7 @@ import org.whispersystems.signalservice.api.messages.calls.AnswerMessage;
 import org.whispersystems.signalservice.api.messages.calls.CallingResponse;
 import org.whispersystems.signalservice.api.messages.calls.IceUpdateMessage;
 import org.whispersystems.signalservice.api.messages.calls.OfferMessage;
+import org.whispersystems.signalservice.api.messages.calls.OpaqueMessage;
 import org.whispersystems.signalservice.api.messages.calls.SignalServiceCallMessage;
 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 import org.whispersystems.signalservice.api.messages.multidevice.ConfigurationMessage;
@@ -976,7 +977,11 @@ public class SignalServiceMessageSender {
     } else if (callMessage.getBusyMessage().isPresent()) {
       builder.setBusy(CallMessage.Busy.newBuilder().setId(callMessage.getBusyMessage().get().getId()));
     } else if (callMessage.getOpaqueMessage().isPresent()) {
-      builder.setOpaque(CallMessage.Opaque.newBuilder().setData(ByteString.copyFrom(callMessage.getOpaqueMessage().get().getOpaque())));
+      OpaqueMessage              opaqueMessage = callMessage.getOpaqueMessage().get();
+      ByteString                 data          = ByteString.copyFrom(opaqueMessage.getOpaque());
+      CallMessage.Opaque.Urgency urgency       = opaqueMessage.getUrgency().toProto();
+
+      builder.setOpaque(CallMessage.Opaque.newBuilder().setData(data).setUrgency(urgency));
     }
 
     builder.setMultiRing(callMessage.isMultiRing());
diff --git a/libsignal/service/src/main/java/org/whispersystems/signalservice/api/messages/SignalServiceContent.java b/libsignal/service/src/main/java/org/whispersystems/signalservice/api/messages/SignalServiceContent.java
index 9a6dad08a..da7b4f696 100644
--- a/libsignal/service/src/main/java/org/whispersystems/signalservice/api/messages/SignalServiceContent.java
+++ b/libsignal/service/src/main/java/org/whispersystems/signalservice/api/messages/SignalServiceContent.java
@@ -848,7 +848,7 @@ public final class SignalServiceContent {
       return SignalServiceCallMessage.forBusy(new BusyMessage(busy.getId()), isMultiRing, destinationDeviceId);
     } else if (content.hasOpaque()) {
       SignalServiceProtos.CallMessage.Opaque opaque = content.getOpaque();
-      return SignalServiceCallMessage.forOpaque(new OpaqueMessage(opaque.getData().toByteArray()), isMultiRing, destinationDeviceId);
+      return SignalServiceCallMessage.forOpaque(new OpaqueMessage(opaque.getData().toByteArray(), null), isMultiRing, destinationDeviceId);
     }
 
     return SignalServiceCallMessage.empty();
diff --git a/libsignal/service/src/main/java/org/whispersystems/signalservice/api/messages/calls/OpaqueMessage.java b/libsignal/service/src/main/java/org/whispersystems/signalservice/api/messages/calls/OpaqueMessage.java
index dd108f10a..d6dab0765 100644
--- a/libsignal/service/src/main/java/org/whispersystems/signalservice/api/messages/calls/OpaqueMessage.java
+++ b/libsignal/service/src/main/java/org/whispersystems/signalservice/api/messages/calls/OpaqueMessage.java
@@ -1,14 +1,34 @@
 package org.whispersystems.signalservice.api.messages.calls;
 
+import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
+
 public class OpaqueMessage {
 
-  private final byte[] opaque;
+  private final byte[]  opaque;
+  private final Urgency urgency;
 
-  public OpaqueMessage(byte[] opaque) {
-    this.opaque = opaque;
+  public OpaqueMessage(byte[] opaque, Urgency urgency) {
+    this.opaque  = opaque;
+    this.urgency = urgency == null ? Urgency.DROPPABLE : urgency;
   }
 
   public byte[] getOpaque() {
     return opaque;
   }
+
+  public Urgency getUrgency() {
+    return urgency;
+  }
+
+  public enum Urgency {
+    DROPPABLE,
+    HANDLE_IMMEDIATELY;
+
+    public SignalServiceProtos.CallMessage.Opaque.Urgency toProto() {
+      if (this == HANDLE_IMMEDIATELY) {
+        return SignalServiceProtos.CallMessage.Opaque.Urgency.HANDLE_IMMEDIATELY;
+      }
+      return SignalServiceProtos.CallMessage.Opaque.Urgency.DROPPABLE;
+    }
+  }
 }
diff --git a/libsignal/service/src/main/proto/SignalService.proto b/libsignal/service/src/main/proto/SignalService.proto
index 9f571db20..715c752a8 100644
--- a/libsignal/service/src/main/proto/SignalService.proto
+++ b/libsignal/service/src/main/proto/SignalService.proto
@@ -97,8 +97,13 @@ message CallMessage {
   }
 
   message Opaque {
-    optional bytes data  = 1;
-    reserved /* urgency */ 2;
+    enum Urgency {
+      DROPPABLE          = 0;
+      HANDLE_IMMEDIATELY = 1;
+    }
+
+    optional bytes   data    = 1;
+    optional Urgency urgency = 2;
   }
 
   optional Offer     offer               = 1;