diff --git a/apps/web/src/utils/leave-behaviour.ts b/apps/web/src/utils/leave-behaviour.ts
index 8b7ee02f36..9756fa50cf 100644
--- a/apps/web/src/utils/leave-behaviour.ts
+++ b/apps/web/src/utils/leave-behaviour.ts
@@ -9,6 +9,7 @@ Please see LICENSE files in the repository root for full details.
 import { sleep } from "matrix-js-sdk/src/utils";
 import React, { type ReactNode } from "react";
 import { EventStatus, MatrixEventEvent, type Room, type MatrixClient, MatrixError } from "matrix-js-sdk/src/matrix";
+import { logger } from "matrix-js-sdk/src/logger";
 
 import Modal, { type IHandle } from "../Modal";
 import Spinner from "../components/views/elements/Spinner";
@@ -25,6 +26,8 @@ import { type AfterLeaveRoomPayload } from "../dispatcher/payloads/AfterLeaveRoo
 import { bulkSpaceBehaviour } from "./space";
 import { SdkContextClass } from "../contexts/SDKContext";
 import SettingsStore from "../settings/SettingsStore";
+import { CallStore } from "../stores/CallStore";
+import LegacyCallHandler from "../LegacyCallHandler";
 
 export async function leaveRoomBehaviour(
     matrixClient: MatrixClient,
@@ -59,6 +62,23 @@ export async function leaveRoomBehaviour(
         throw new Error(`Expected to find room for id ${roomId}`);
     }
 
+    // attempt to hang up legacy based calls
+    try {
+        LegacyCallHandler.instance.hangupOrReject(roomId);
+    } catch (e) {
+        logger.warn("Failed to hangup call before leaving room: ", e);
+    }
+
+    // hang up widget based calls
+    const activeCall = CallStore.instance.getActiveCall(roomId);
+    if (activeCall) {
+        try {
+            await activeCall.disconnect();
+        } catch (e) {
+            logger.warn("Failed to disconnect call before leaving room: ", e);
+        }
+    }
+
     // await any queued messages being sent so that they do not fail
     await Promise.all(
         room
diff --git a/apps/web/test/unit-tests/utils/leave-behaviour-test.ts b/apps/web/test/unit-tests/utils/leave-behaviour-test.ts
index 9da796a3a5..a6da3a4083 100644
--- a/apps/web/test/unit-tests/utils/leave-behaviour-test.ts
+++ b/apps/web/test/unit-tests/utils/leave-behaviour-test.ts
@@ -22,6 +22,9 @@ import SpaceStore from "../../../src/stores/spaces/SpaceStore";
 import { MetaSpace } from "../../../src/stores/spaces";
 import { type ActionPayload } from "../../../src/dispatcher/payloads";
 import SettingsStore from "../../../src/settings/SettingsStore";
+import { CallStore } from "../../../src/stores/CallStore";
+import { type Call } from "../../../src/models/Call";
+import LegacyCallHandler from "../../../src/LegacyCallHandler";
 
 describe("leaveRoomBehaviour", () => {
     SdkContextClass.instance.constructEagerStores(); // Initialize RoomViewStore
@@ -76,6 +79,28 @@ describe("leaveRoomBehaviour", () => {
         defaultDispatcher.unregister(dispatcherRef);
     };
 
+    it("hangs up legacy calls when leaving a room", async () => {
+        const hangupSpy = jest.spyOn(LegacyCallHandler.instance, "hangupOrReject").mockImplementation(() => {});
+
+        viewRoom(room);
+        await leaveRoomBehaviour(client, room.roomId);
+
+        expect(hangupSpy).toHaveBeenCalledWith(room.roomId);
+    });
+
+    it("disconnects widget-based calls when leaving a room", async () => {
+        const mockCall = {
+            disconnect: jest.fn().mockResolvedValue(undefined),
+        } as unknown as Call;
+
+        jest.spyOn(CallStore.instance, "getActiveCall").mockReturnValue(mockCall);
+
+        viewRoom(room);
+        await leaveRoomBehaviour(client, room.roomId);
+
+        expect(mockCall.disconnect).toHaveBeenCalled();
+    });
+
     it("returns to the home page after leaving a room outside of a space that was being viewed", async () => {
         viewRoom(room);