diff --git a/app/providers/CallProvider/CallProvider.tsx b/app/providers/CallProvider/CallProvider.tsx
index 9aeb389..72ba76c 100644
--- a/app/providers/CallProvider/CallProvider.tsx
+++ b/app/providers/CallProvider/CallProvider.tsx
@@ -8,6 +8,8 @@ import { usePacket } from "../ProtocolProvider/usePacket";
 import { usePublicKey } from "../AccountProvider/usePublicKey";
 import { PacketWebRTC, WebRTCSignalType } from "../ProtocolProvider/protocol/packets/packet.webrtc";
 import { PacketIceServers } from "../ProtocolProvider/protocol/packets/packet.ice.servers";
+import { modals } from "@mantine/modals";
+import { Button, Flex, Text } from "@mantine/core";
 
 
 export interface CallContextValue {
@@ -165,6 +167,46 @@ export function CallProvider(props : CallProviderProps) {
 
     usePacket(26, async (packet: PacketSignalPeer) => {
         const signalType = packet.getSignalType();
+        if(signalType == SignalType.END_CALL_BECAUSE_BUSY) {
+            modals.open({
+                title: 'Busy',
+                centered: true,
+                children: (
+                    <>
+                        <Text size="sm">
+                            Line is busy, the user is currently on another call. Please try again later.
+                        </Text>
+                        <Flex align={'center'} justify={'flex-end'}>
+                            <Button color={'red'} variant={'subtle'} onClick={() => modals.closeAll()} mt="md">
+                                Close
+                            </Button>
+                        </Flex>
+                    </>
+                ),
+                withCloseButton: false
+            });
+            end();
+        }
+        if(signalType == SignalType.END_CALL_BECAUSE_PEER_DISCONNECTED) {
+            modals.open({
+                title: 'Connection lost',
+                centered: true,
+                children: (
+                    <>
+                        <Text size="sm">
+                            The connection with the user was lost. The call has ended.
+                        </Text>
+                        <Flex align={'center'} justify={'flex-end'}>
+                            <Button color={'red'} variant={'subtle'} onClick={() => modals.closeAll()} mt="md">
+                                Close
+                            </Button>
+                        </Flex>
+                    </>
+                ),
+                withCloseButton: false
+            });
+            end();  
+        }
         if(activeCall){
             /**
              * У нас уже есть активный звонок, игнорируем все сигналы, кроме сигналов от текущего звонка
diff --git a/app/providers/ProtocolProvider/protocol/packets/packet.signal.peer.ts b/app/providers/ProtocolProvider/protocol/packets/packet.signal.peer.ts
index d37d513..1ad3d38 100644
--- a/app/providers/ProtocolProvider/protocol/packets/packet.signal.peer.ts
+++ b/app/providers/ProtocolProvider/protocol/packets/packet.signal.peer.ts
@@ -6,7 +6,9 @@ export enum SignalType {
     KEY_EXCHANGE = 1,
     ACTIVE_CALL = 2,
     END_CALL = 3,
-    CREATE_ROOM = 4
+    CREATE_ROOM = 4,
+    END_CALL_BECAUSE_PEER_DISCONNECTED = 5,
+    END_CALL_BECAUSE_BUSY = 6
 }
 
 /**
@@ -40,6 +42,9 @@ export class PacketSignalPeer extends Packet {
 
     public _receive(stream: Stream): void {
         this.signalType = stream.readInt8();
+        if(this.signalType == SignalType.END_CALL_BECAUSE_BUSY || this.signalType == SignalType.END_CALL_BECAUSE_PEER_DISCONNECTED){
+            return;
+        }
         this.src = stream.readString();
         this.dst = stream.readString();
         if(this.signalType == SignalType.KEY_EXCHANGE){
@@ -54,6 +59,9 @@ export class PacketSignalPeer extends Packet {
         const stream = new Stream();
         stream.writeInt16(this.getPacketId());
         stream.writeInt8(this.signalType);
+        if(this.signalType == SignalType.END_CALL_BECAUSE_BUSY || this.signalType == SignalType.END_CALL_BECAUSE_PEER_DISCONNECTED){
+            return stream;
+        }
         stream.writeString(this.src);
         stream.writeString(this.dst);
         if(this.signalType == SignalType.KEY_EXCHANGE){