diff --git a/app/providers/ProtocolProvider/protocol/packets/packet.signal.ts b/app/providers/ProtocolProvider/protocol/packets/packet.signal.ts
index 5a6ce5f..d0a0d89 100644
--- a/app/providers/ProtocolProvider/protocol/packets/packet.signal.ts
+++ b/app/providers/ProtocolProvider/protocol/packets/packet.signal.ts
@@ -2,10 +2,10 @@ import Packet from "../packet";
 import Stream from "../stream";
 
 export enum SignalType {
-    CALL = 1,
-    KEY_EXCHANGE = 2,
-    ACTIVE_CALL = 3,
-    END_CALL = 4
+    CALL = 0,
+    KEY_EXCHANGE = 1,
+    ACTIVE_CALL = 2,
+    END_CALL = 3
 }
 
 export class PacketSignal extends Packet {