diff --git a/src/CallHandler.tsx b/src/CallHandler.tsx
index dc2d60db0e..b4e8ae75e6 100644
--- a/src/CallHandler.tsx
+++ b/src/CallHandler.tsx
@@ -67,9 +67,6 @@ export const PROTOCOL_SIP_NATIVE = 'im.vector.protocol.sip_native';
 export const PROTOCOL_SIP_VIRTUAL = 'im.vector.protocol.sip_virtual';
 
 const CHECK_PROTOCOLS_ATTEMPTS = 3;
-// Event type for room account data and room creation content used to mark rooms as virtual rooms
-// (and store the ID of their native room)
-export const VIRTUAL_ROOM_EVENT_TYPE = 'im.vector.is_virtual_room';
 
 enum AudioID {
     Ring = 'ringAudio',
diff --git a/src/VoipUserMapper.ts b/src/VoipUserMapper.ts
index cb39d9affb..90f920bc9b 100644
--- a/src/VoipUserMapper.ts
+++ b/src/VoipUserMapper.ts
@@ -21,7 +21,8 @@ import { EventType } from 'matrix-js-sdk/src/@types/event';
 import { ensureVirtualRoomExists, findDMForUser } from './createRoom';
 import { MatrixClientPeg } from "./MatrixClientPeg";
 import DMRoomMap from "./utils/DMRoomMap";
-import CallHandler, { VIRTUAL_ROOM_EVENT_TYPE } from './CallHandler';
+import CallHandler from './CallHandler';
+import { VIRTUAL_ROOM_EVENT_TYPE } from "./call-types";
 
 // Functions for mapping virtual users & rooms. Currently the only lookup
 // is sip virtual: there could be others in the future.
diff --git a/src/call-types.ts b/src/call-types.ts
new file mode 100644
index 0000000000..c12491e102
--- /dev/null
+++ b/src/call-types.ts
@@ -0,0 +1,19 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Event type for room account data and room creation content used to mark rooms as virtual rooms
+// (and store the ID of their native room)
+export const VIRTUAL_ROOM_EVENT_TYPE = 'im.vector.is_virtual_room';
diff --git a/src/createRoom.ts b/src/createRoom.ts
index 91eb1b45e9..92efb9477d 100644
--- a/src/createRoom.ts
+++ b/src/createRoom.ts
@@ -39,7 +39,7 @@ import DMRoomMap from "./utils/DMRoomMap";
 import { getAddressType } from "./UserAddress";
 import { getE2EEWellKnown } from "./utils/WellKnownUtils";
 import { isJoinedOrNearlyJoined } from "./utils/membership";
-import { VIRTUAL_ROOM_EVENT_TYPE } from "./CallHandler";
+import { VIRTUAL_ROOM_EVENT_TYPE } from "./call-types";
 import SpaceStore from "./stores/spaces/SpaceStore";
 import { makeSpaceParentEvent } from "./utils/space";
 import { VOICE_CHANNEL_MEMBER, addVoiceChannel } from "./utils/VoiceChannelUtils";