diff --git a/modules/xmpp/JingleSessionState.js b/modules/xmpp/JingleSessionState.js
deleted file mode 100644
index 64bc27c9b8..0000000000
--- a/modules/xmpp/JingleSessionState.js
+++ /dev/null
@@ -1,22 +0,0 @@
-/**
- * The pending Jingle session state which means the session as defined in
- * XEP-0166(before 'session-invite/session-accept' took place).
- *
- * @type {string}
- */
-export const PENDING = 'pending';
-
-/**
- * The active Jingle session state as defined in XEP-0166
- * (after 'session-invite'/'session-accept').
- *
- * @type {string}
- */
-export const ACTIVE = 'active';
-
-/**
- * The ended Jingle session state as defined in XEP-0166
- * (after 'session-terminate').
- * @type {string}
- */
-export const ENDED = 'ended';
diff --git a/modules/xmpp/JingleSessionState.ts b/modules/xmpp/JingleSessionState.ts
new file mode 100644
index 0000000000..85af2e18d5
--- /dev/null
+++ b/modules/xmpp/JingleSessionState.ts
@@ -0,0 +1,24 @@
+export enum JingleSessionState {
+    /**
+     * The pending Jingle session state which means the session as defined in
+     * XEP-0166(before 'session-invite/session-accept' took place).
+     */
+    PENDING = 'pending',
+
+    /**
+     * The active Jingle session state as defined in XEP-0166
+     * (after 'session-invite'/'session-accept').
+     */
+    ACTIVE = 'active',
+
+    /**
+     * The ended Jingle session state as defined in XEP-0166
+     * (after 'session-terminate').
+     */
+    ENDED = 'ended'
+};
+
+// exported for backward compatibility
+export const PENDING = JingleSessionState.PENDING;
+export const ACTIVE = JingleSessionState.ACTIVE;
+export const ENDED = JingleSessionState.ENDED;
diff --git a/types/auto/modules/xmpp/JingleSession.d.ts b/types/auto/modules/xmpp/JingleSession.d.ts
index e519b399d6..613201a6a9 100644
--- a/types/auto/modules/xmpp/JingleSession.d.ts
+++ b/types/auto/modules/xmpp/JingleSession.d.ts
@@ -51,7 +51,7 @@ export default class JingleSession extends Listenable {
      * Jingle session state - uninitialized until {@link initialize} is
      * called @type {JingleSessionState}
      */
-    state: string;
+    state: JingleSessionState.JingleSessionState;
     /**
      * The RTC service instance
      * @type {RTC}
diff --git a/types/auto/modules/xmpp/JingleSessionState.d.ts b/types/auto/modules/xmpp/JingleSessionState.d.ts
index bf94446e5e..9b8863ebed 100644
--- a/types/auto/modules/xmpp/JingleSessionState.d.ts
+++ b/types/auto/modules/xmpp/JingleSessionState.d.ts
@@ -1,20 +1,20 @@
-/**
- * The pending Jingle session state which means the session as defined in
- * XEP-0166(before 'session-invite/session-accept' took place).
- *
- * @type {string}
- */
-export const PENDING: string;
-/**
- * The active Jingle session state as defined in XEP-0166
- * (after 'session-invite'/'session-accept').
- *
- * @type {string}
- */
-export const ACTIVE: string;
-/**
- * The ended Jingle session state as defined in XEP-0166
- * (after 'session-terminate').
- * @type {string}
- */
-export const ENDED: string;
+export declare enum JingleSessionState {
+    /**
+     * The pending Jingle session state which means the session as defined in
+     * XEP-0166(before 'session-invite/session-accept' took place).
+     */
+    PENDING = "pending",
+    /**
+     * The active Jingle session state as defined in XEP-0166
+     * (after 'session-invite'/'session-accept').
+     */
+    ACTIVE = "active",
+    /**
+     * The ended Jingle session state as defined in XEP-0166
+     * (after 'session-terminate').
+     */
+    ENDED = "ended"
+}
+export declare const PENDING = JingleSessionState.PENDING;
+export declare const ACTIVE = JingleSessionState.ACTIVE;
+export declare const ENDED = JingleSessionState.ENDED;