diff --git a/src/analytics/PosthogEvents.ts b/src/analytics/PosthogEvents.ts
index f49a7553..0252c0aa 100644
--- a/src/analytics/PosthogEvents.ts
+++ b/src/analytics/PosthogEvents.ts
@@ -17,6 +17,7 @@ import {
 
 interface CallEnded extends IPosthogEvent {
   eventName: "CallEnded";
+  // the callId posthog key is essentially a Matrix roomId
   callId: string;
   callParticipantsOnLeave: number;
   callParticipantsMax: number;
@@ -120,6 +121,7 @@ export class CallEndedTracker {
 
 interface CallStarted extends IPosthogEvent {
   eventName: "CallStarted";
+  // the callId posthog key is essentially a Matrix roomId
   callId: string;
 }
 
@@ -180,6 +182,7 @@ export class LoginTracker {
 interface MuteMicrophone {
   eventName: "MuteMicrophone";
   targetMuteState: "mute" | "unmute";
+  // the callId posthog key is essentially a Matrix roomId
   callId: string;
 }
 
@@ -196,6 +199,7 @@ export class MuteMicrophoneTracker {
 interface MuteCamera {
   eventName: "MuteCamera";
   targetMuteState: "mute" | "unmute";
+  // the callId posthog key is essentially a Matrix roomId
   callId: string;
 }
 
@@ -211,6 +215,7 @@ export class MuteCameraTracker {
 
 interface UndecryptableToDeviceEvent {
   eventName: "UndecryptableToDeviceEvent";
+  // the callId posthog key is essentially a Matrix roomId
   callId: string;
 }
 
@@ -225,6 +230,7 @@ export class UndecryptableToDeviceEventTracker {
 
 interface QualitySurveyEvent {
   eventName: "QualitySurvey";
+  // the callId posthog key is essentially a Matrix roomId
   callId: string;
   feedbackText: string;
   stars: number;
@@ -298,6 +304,7 @@ export type CallReconnectingReason =
 
 interface CallReconnecting extends IPosthogEvent {
   eventName: "CallReconnecting";
+   // the callId posthog key is essentially a Matrix roomId
   callId: string;
   reason: CallReconnectingReason;
   reconnectDuration: number;
diff --git a/src/state/CallViewModel/CallViewModel.ts b/src/state/CallViewModel/CallViewModel.ts
index 016b930f..07898b9e 100644
--- a/src/state/CallViewModel/CallViewModel.ts
+++ b/src/state/CallViewModel/CallViewModel.ts
@@ -560,7 +560,7 @@ export function createCallViewModel$(
     connectionManager,
     matrixRTCSession,
     localTransport$,
-    callId: matrixRoom.roomId,
+    roomId: matrixRoom.roomId,
     logger: logger.getChild(`[${Date.now()}]`),
   });
 
diff --git a/src/state/CallViewModel/localMember/LocalMember.test.ts b/src/state/CallViewModel/localMember/LocalMember.test.ts
index 6b3be70d..25b7191e 100644
--- a/src/state/CallViewModel/localMember/LocalMember.test.ts
+++ b/src/state/CallViewModel/localMember/LocalMember.test.ts
@@ -231,7 +231,7 @@ describe("LocalMembership", () => {
       ]),
       rtsSession$: constant(RTCMemberStatus.Connected),
     },
-    callId: "!test-room-id:example.org",
+    roomId: "!test-room-id:example.org",
   };
 
   it("throws error on missing RTC config error", () => {
@@ -772,7 +772,7 @@ describe("LocalMembership", () => {
       hsReason$.next([true, null]);
 
       expect(trackSpy).toHaveBeenCalledWith(
-        defaultCreateLocalMemberValues.callId,
+        defaultCreateLocalMemberValues.roomId,
         "sync",
         expect.any(Number),
       );
@@ -822,7 +822,7 @@ describe("LocalMembership", () => {
       connectionState$.next(ConnectionState.LivekitConnected);
 
       expect(trackSpy).toHaveBeenCalledWith(
-        defaultCreateLocalMemberValues.callId,
+        defaultCreateLocalMemberValues.roomId,
         "livekit",
         expect.any(Number),
       );
@@ -873,13 +873,13 @@ describe("LocalMembership", () => {
       expect(trackSpy).toHaveBeenCalledTimes(2);
       expect(trackSpy).toHaveBeenNthCalledWith(
         1,
-        defaultCreateLocalMemberValues.callId,
+        defaultCreateLocalMemberValues.roomId,
         "membership",
         expect.any(Number),
       );
       expect(trackSpy).toHaveBeenNthCalledWith(
         2,
-        defaultCreateLocalMemberValues.callId,
+        defaultCreateLocalMemberValues.roomId,
         "probablyLeft",
         expect.any(Number),
       );
diff --git a/src/state/CallViewModel/localMember/LocalMember.ts b/src/state/CallViewModel/localMember/LocalMember.ts
index 13a21a41..88f3da0a 100644
--- a/src/state/CallViewModel/localMember/LocalMember.ts
+++ b/src/state/CallViewModel/localMember/LocalMember.ts
@@ -128,7 +128,7 @@ interface Props {
   createPublisherFactory: (connection: Connection) => Publisher;
   joinMatrixRTC: (transport: LivekitTransportConfig) => void;
   homeserverConnected: HomeserverConnected;
-  callId: string;
+  roomId: string;
   localTransport$: Behavior<LocalTransport>;
   matrixRTCSession: Pick<
     MatrixRTCSession,
@@ -152,7 +152,7 @@ interface Props {
  * @param props.logger The logger to use.
  * @param props.muteStates The mute states for video and audio.
  * @param props.matrixRTCSession The matrix RTC session to join.
- * @param props.callId The room ID used as the call identifier in analytics events.
+ * @param props.roomId The room ID used as the call identifier in analytics events.
  * @returns
  *  - publisher: The handle to create tracks and publish them to the room.
  *  - connected$: the current connection state. Including matrix server and livekit server connection. (only considering the livekit server we are using for our own media publication)
@@ -170,7 +170,7 @@ export const createLocalMembership$ = ({
   logger: parentLogger,
   muteStates,
   matrixRTCSession,
-  callId,
+  roomId: roomId,
 }: Props): {
   /**
    * This request to start audio and video tracks.
@@ -552,7 +552,7 @@ export const createLocalMembership$ = ({
         }
       } else if (reconnectStart !== null) {
         PosthogAnalytics.instance.eventCallReconnecting.track(
-          callId,
+          roomId,
           reconnectStart.reason,
           (Date.now() - reconnectStart.time) / 1000,
         );