diff --git a/sdk/src/platform/Platform-spec.ts b/sdk/src/platform/Platform-spec.ts
index d2bdef2..6a1861a 100644
--- a/sdk/src/platform/Platform-spec.ts
+++ b/sdk/src/platform/Platform-spec.ts
@@ -82,6 +82,42 @@ describe('RingCentral.platform.Platform', () => {
             }),
         );
 
+        it(
+            'login with JWT',
+            asyncTest(async sdk => {
+                const platform = sdk.platform();
+
+                await platform.auth().cancelAccessToken();
+
+                authentication();
+
+                await platform.login({
+                    jwt: 'foo',
+                });
+
+                expect((await platform.auth().data()).access_token).to.equal('ACCESS_TOKEN');
+            }),
+        );
+
+        it(
+            'login with username/password',
+            asyncTest(async sdk => {
+                const platform = sdk.platform();
+
+                await platform.auth().cancelAccessToken();
+
+                authentication();
+
+                await platform.login({
+                    username: 'foo',
+                    password: 'foo',
+                    extension: 'foo',
+                });
+
+                expect((await platform.auth().data()).access_token).to.equal('ACCESS_TOKEN');
+            }),
+        );
+
         it(
             'login with code from usePKCE flow without client secret',
             asyncTest(
diff --git a/sdk/src/platform/Platform.ts b/sdk/src/platform/Platform.ts
index e5a4863..e6e21ea 100644
--- a/sdk/src/platform/Platform.ts
+++ b/sdk/src/platform/Platform.ts
@@ -422,6 +422,7 @@ export default class Platform extends EventEmitter {
         password,
         extension = '',
         code,
+        jwt,
         access_token_ttl,
         refresh_token_ttl,
         access_token,
@@ -452,7 +453,7 @@ export default class Platform extends EventEmitter {
                 //TODO Potentially make a request to /oauth/tokeninfo
                 json = {access_token, ...options};
             } else {
-                if (!code) {
+                if (!code && !jwt) {
                     body.grant_type = 'password';
                     if (extension && extension.length > 0) {
                         body.username = `${username}*${extension}`;
@@ -460,6 +461,9 @@ export default class Platform extends EventEmitter {
                         body.username = username;
                     }
                     body.password = password;
+                } else if (jwt) {
+                    body.grant_type = 'urn:ietf:params:oauth:grant-type:jwt-bearer';
+                    body.assertion = jwt;
                 } else if (code) {
                     //@see https://developers.ringcentral.com/legacy-api-reference/index.html#!#RefAuthorizationCodeFlow
                     body.grant_type = 'authorization_code';
@@ -834,6 +838,7 @@ export interface LoginOptions {
     password?: string;
     extension?: string;
     code?: string;
+    jwt?: string;
     access_token?: string;
     access_token_ttl?: number;
     refresh_token_ttl?: number;