diff --git a/libraries/botbuilder/etc/botbuilder.api.md b/libraries/botbuilder/etc/botbuilder.api.md
index 973aef33d8..1c9ce403bf 100644
--- a/libraries/botbuilder/etc/botbuilder.api.md
+++ b/libraries/botbuilder/etc/botbuilder.api.md
@@ -45,6 +45,7 @@ import { IStreamingTransportServer } from 'botframework-streaming';
 import { MeetingEndEventDetails } from 'botbuilder-core';
 import { MeetingNotification } from 'botbuilder-core';
 import { MeetingNotificationResponse } from 'botbuilder-core';
+import { MeetingParticipantsEventDetails } from 'botbuilder-core';
 import { MeetingStartEventDetails } from 'botbuilder-core';
 import { MessagingExtensionAction } from 'botbuilder-core';
 import { MessagingExtensionActionResponse } from 'botbuilder-core';
@@ -404,6 +405,10 @@ export class TeamsActivityHandler extends ActivityHandler {
     onTeamsChannelRestoredEvent(handler: (channelInfo: ChannelInfo, teamInfo: TeamInfo, context: TurnContext, next: () => Promise<void>) => Promise<void>): this;
     protected onTeamsMeetingEnd(context: TurnContext): Promise<void>;
     onTeamsMeetingEndEvent(handler: (meeting: MeetingEndEventDetails, context: TurnContext, next: () => Promise<void>) => Promise<void>): this;
+    protected onTeamsMeetingParticipantsJoin(context: TurnContext): Promise<void>;
+    onTeamsMeetingParticipantsJoinEvent(handler: (meeting: MeetingParticipantsEventDetails, context: TurnContext, next: () => Promise<void>) => Promise<void>): this;
+    protected onTeamsMeetingParticipantsLeave(context: TurnContext): Promise<void>;
+    onTeamsMeetingParticipantsLeaveEvent(handler: (meeting: MeetingParticipantsEventDetails, context: TurnContext, next: () => Promise<void>) => Promise<void>): this;
     protected onTeamsMeetingStart(context: TurnContext): Promise<void>;
     onTeamsMeetingStartEvent(handler: (meeting: MeetingStartEventDetails, context: TurnContext, next: () => Promise<void>) => Promise<void>): this;
     protected onTeamsMembersAdded(context: TurnContext): Promise<void>;
diff --git a/libraries/botbuilder/src/teamsActivityHandler.ts b/libraries/botbuilder/src/teamsActivityHandler.ts
index 47da1d3b32..322096d0e8 100644
--- a/libraries/botbuilder/src/teamsActivityHandler.ts
+++ b/libraries/botbuilder/src/teamsActivityHandler.ts
@@ -35,6 +35,7 @@ import {
     tokenExchangeOperationName,
     TurnContext,
     verifyStateOperationName,
+    MeetingParticipantsEventDetails,
 } from 'botbuilder-core';
 import { ReadReceiptInfo } from 'botframework-connector';
 import { TeamsInfo } from './teamsInfo';
@@ -1193,6 +1194,10 @@ export class TeamsActivityHandler extends ActivityHandler {
                     return this.onTeamsMeetingStart(context);
                 case 'application/vnd.microsoft.meetingEnd':
                     return this.onTeamsMeetingEnd(context);
+                case 'application/vnd.microsoft.meetingParticipantJoin':
+                    return this.onTeamsMeetingParticipantsJoin(context);
+                case 'application/vnd.microsoft.meetingParticipantLeave':
+                    return this.onTeamsMeetingParticipantsLeave(context);
             }
         }
 
@@ -1232,6 +1237,28 @@ export class TeamsActivityHandler extends ActivityHandler {
         await this.handle(context, 'TeamsReadReceipt', this.defaultNextEvent(context));
     }
 
+    /**
+     * Invoked when a Meeting Participant Join event activity is received from the connector.
+     * Override this in a derived class to provide logic for when a meeting participant is joined.
+     *
+     * @param context The context for this turn.
+     * @returns A promise that represents the work queued.
+     */
+    protected async onTeamsMeetingParticipantsJoin(context: TurnContext): Promise<void> {
+        await this.handle(context, 'TeamsMeetingParticipantsJoin', this.defaultNextEvent(context));
+    }
+
+    /**
+     * Invoked when a Meeting Participant Leave event activity is received from the connector.
+     * Override this in a derived class to provide logic for when a meeting participant is left.
+     *
+     * @param context The context for this turn.
+     * @returns A promise that represents the work queued.
+     */
+    protected async onTeamsMeetingParticipantsLeave(context: TurnContext): Promise<void> {
+        await this.handle(context, 'TeamsMeetingParticipantsLeave', this.defaultNextEvent(context));
+    }
+
     /**
      * Registers a handler for when a Teams meeting starts.
      *
@@ -1296,4 +1323,54 @@ export class TeamsActivityHandler extends ActivityHandler {
             await handler(new ReadReceiptInfo(receiptInfo.lastReadMessageId), context, next);
         });
     }
+
+    /**
+     * Registers a handler for when a Teams meeting participant join.
+     *
+     * @param handler A callback that handles Meeting Participant Join events.
+     * @returns A promise that represents the work queued.
+     */
+    onTeamsMeetingParticipantsJoinEvent(
+        handler: (
+            meeting: MeetingParticipantsEventDetails,
+            context: TurnContext,
+            next: () => Promise<void>
+        ) => Promise<void>
+    ): this {
+        return this.on('TeamsMeetingParticipantsJoin', async (context, next) => {
+            const meeting = context.activity.value;
+            await handler(
+                {
+                    members: meeting?.members,
+                },
+                context,
+                next
+            );
+        });
+    }
+
+    /**
+     * Registers a handler for when a Teams meeting participant leave.
+     *
+     * @param handler A callback that handles Meeting Participant Leave events.
+     * @returns A promise that represents the work queued.
+     */
+    onTeamsMeetingParticipantsLeaveEvent(
+        handler: (
+            meeting: MeetingParticipantsEventDetails,
+            context: TurnContext,
+            next: () => Promise<void>
+        ) => Promise<void>
+    ): this {
+        return this.on('TeamsMeetingParticipantsLeave', async (context, next) => {
+            const meeting = context.activity.value;
+            await handler(
+                {
+                    members: meeting?.members,
+                },
+                context,
+                next
+            );
+        });
+    }
 }
diff --git a/libraries/botbuilder/tests/teamsActivityHandler.test.js b/libraries/botbuilder/tests/teamsActivityHandler.test.js
index 5db46953d0..234a2e580e 100644
--- a/libraries/botbuilder/tests/teamsActivityHandler.test.js
+++ b/libraries/botbuilder/tests/teamsActivityHandler.test.js
@@ -2603,6 +2603,34 @@ describe('TeamsActivityHandler', function () {
             return activity;
         }
 
+        function createMeetingParticipantEventActivity(join = true) {
+            const value = {
+                members: [
+                    {
+                        user: {
+                            id: 'id',
+                            name: 'name',
+                        },
+                        meeting: {
+                            role: 'role',
+                            inMeeting: join,
+                        },
+                    },
+                ],
+            };
+
+            const activity = {
+                channelId: Channels.Msteams,
+                type: 'event',
+                value: value,
+                name: join
+                    ? 'application/vnd.microsoft.meetingParticipantJoin'
+                    : 'application/vnd.microsoft.meetingParticipantLeave',
+            };
+
+            return activity;
+        }
+
         let onEventCalled;
         let onDialogCalled;
         this.beforeEach(function () {
@@ -2797,5 +2825,89 @@ describe('TeamsActivityHandler', function () {
                 })
                 .startTest();
         });
+
+        it('onTeamsMeetingParticipantsJoin routed activity', async function () {
+            let onTeamsMeetingParticipantsJoinCalled = false;
+            const bot = new TeamsActivityHandler();
+            const activity = createMeetingParticipantEventActivity();
+
+            bot.onEvent(async (context, next) => {
+                assert(context, 'context not found');
+                assert(next, 'next not found');
+                onEventCalled = true;
+                await next();
+            });
+
+            bot.onTeamsMeetingParticipantsJoinEvent(async (meeting, context, next) => {
+                assert(meeting, 'meeting not found');
+                assert(context, 'context not found');
+                assert(next, 'next not found');
+                assert.deepStrictEqual(meeting, activity.value);
+                onTeamsMeetingParticipantsJoinCalled = true;
+                await next();
+            });
+
+            bot.onDialog(async (context, next) => {
+                assert(context, 'context not found');
+                assert(next, 'next not found');
+                onDialogCalled = true;
+                await next();
+            });
+
+            const adapter = new TestAdapter(async (context) => {
+                await bot.run(context);
+            });
+
+            await adapter
+                .send(activity)
+                .then(() => {
+                    assert(onTeamsMeetingParticipantsJoinCalled);
+                    assert(onEventCalled, 'onConversationUpdate handler not called');
+                    assert(onDialogCalled, 'onDialog handler not called');
+                })
+                .startTest();
+        });
+
+        it('onTeamsMeetingParticipantsLeave routed activity', async function () {
+            let onTeamsMeetingParticipantsLeaveCalled = false;
+            const bot = new TeamsActivityHandler();
+            const activity = createMeetingParticipantEventActivity(false);
+
+            bot.onEvent(async (context, next) => {
+                assert(context, 'context not found');
+                assert(next, 'next not found');
+                onEventCalled = true;
+                await next();
+            });
+
+            bot.onTeamsMeetingParticipantsLeaveEvent(async (meeting, context, next) => {
+                assert(meeting, 'meeting not found');
+                assert(context, 'context not found');
+                assert(next, 'next not found');
+                assert.deepStrictEqual(meeting, activity.value);
+                onTeamsMeetingParticipantsLeaveCalled = true;
+                await next();
+            });
+
+            bot.onDialog(async (context, next) => {
+                assert(context, 'context not found');
+                assert(next, 'next not found');
+                onDialogCalled = true;
+                await next();
+            });
+
+            const adapter = new TestAdapter(async (context) => {
+                await bot.run(context);
+            });
+
+            await adapter
+                .send(activity)
+                .then(() => {
+                    assert(onTeamsMeetingParticipantsLeaveCalled);
+                    assert(onEventCalled, 'onConversationUpdate handler not called');
+                    assert(onDialogCalled, 'onDialog handler not called');
+                })
+                .startTest();
+        });
     });
 });
diff --git a/libraries/botframework-schema/etc/botframework-schema.api.md b/libraries/botframework-schema/etc/botframework-schema.api.md
index dd4146b84c..4cff19dbea 100644
--- a/libraries/botframework-schema/etc/botframework-schema.api.md
+++ b/libraries/botframework-schema/etc/botframework-schema.api.md
@@ -1003,6 +1003,11 @@ export interface MeetingNotificationResponse {
     recipientsFailureInfo?: MeetingNotificationRecipientFailureInfo[];
 }
 
+// @public
+export interface MeetingParticipantsEventDetails {
+    members: TeamsMeetingMember[];
+}
+
 // @public
 export interface MeetingStageSurface<T> {
     content: T;
@@ -1805,6 +1810,12 @@ export interface TeamsMeetingInfo {
     id?: string;
 }
 
+// @public
+export interface TeamsMeetingMember {
+    meeting: UserMeetingDetails;
+    user: TeamsChannelAccount;
+}
+
 // @public
 export interface TeamsMeetingParticipant {
     conversation?: ConversationAccount;
@@ -1949,6 +1960,12 @@ export type Type3 = MessagingExtensionResultType;
 // @public
 export type UserIdentityType = 'aadUser' | 'onPremiseAadUser' | 'anonymousGuest' | 'federatedUser';
 
+// @public
+export interface UserMeetingDetails {
+    inMeeting: boolean;
+    role: string;
+}
+
 // @public
 export interface VideoCard {
     aspect: string;
diff --git a/libraries/botframework-schema/src/teams/index.ts b/libraries/botframework-schema/src/teams/index.ts
index 80b7cf305e..3e1604f181 100644
--- a/libraries/botframework-schema/src/teams/index.ts
+++ b/libraries/botframework-schema/src/teams/index.ts
@@ -2029,3 +2029,44 @@ export interface MeetingNotificationResponse {
      */
     recipientsFailureInfo?: MeetingNotificationRecipientFailureInfo[];
 }
+
+/**
+ * @interface
+ * Specific details about the meeting participants.
+ */
+export interface MeetingParticipantsEventDetails {
+    /**
+     * @member {TeamsMeetingMember[]} [members] The participants info.
+     */
+    members: TeamsMeetingMember[];
+}
+
+/**
+ * @interface
+ * Specific details about the meeting participants.
+ */
+export interface TeamsMeetingMember {
+    /**
+     * @member {TeamsChannelAccount} [user] The participant account.
+     */
+    user: TeamsChannelAccount;
+    /**
+     * @member {UserMeetingDetails} [meeting] The participants info.
+     */
+    meeting: UserMeetingDetails;
+}
+
+/**
+ * @interface
+ * Specific details of a user in a Teams meeting.
+ */
+export interface UserMeetingDetails {
+    /**
+     * @member {boolean} [inMeeting] The user in meeting indicator.
+     */
+    inMeeting: boolean;
+    /**
+     * @member {string} [role] The user's role.
+     */
+    role: string;
+}