# Start a meeting for a non-logged in or API user

<!-- WARNING: THIS FILE WAS AUTOGENERATED! DO NOT EDIT! -->

> The code on this page works with either the **default UI** or the **custom UI**.

After getting the `Zoom Token` and the `Zoom Access Token`, pass these tokens to start meetings with meeting number.

## Start a meeting with a meeting number

To start a meeting with meeting number, retrieve a `MobileRTCMeetingService` instance from `MobileRTC`.

```swift
MobileRTCMeetingService *ms = [[MobileRTC sharedRTC] getMeetingService];
  if (ms)
  {
#if 0
      //customize meeting title
      [ms customizeMeetingTitle:@"Sample Meeting Title"];
#endif
  }
```

Then, get the [Zoom Access Key (ZAK) token](/docs/api/users/#tag/users/GET/users/me/zak).

```swift
//Sample for Start Param interface
MobileRTCMeetingStartParam * param = nil;

//Sample: How to get ZAK via RestAPI
NSString * ZAK = [self requestTokenOrZAKWithType:MobileRTCSampleTokenType_ZAK];
```

See [Get a user's ZAK](/docs/api/users/#tag/users/GET/users/me/zak) and
[SDK Authentication](/docs/meeting-sdk/auth/) for more details about ZAK tokens.

After that, store this value to the `MobileRTCMeetingStartParam4WithoutLoginUser` object
and pass the object to `startMeetingWithStartParam` function to start a meeting.

```swift
MobileRTCMeetingStartParam4WithoutLoginUser * user = [[[MobileRTCMeetingStartParam4WithoutLoginUser alloc]init] autorelease];
user.userType = MobileRTCUserType_APIUser;
user.meetingNumber = kSDKMeetNumber;
user.userName = kSDKUserName;
user.userID = kSDKUserID;
user.isAppShare = appShare;
user.zak = ZAK;
param = user;

MobileRTCMeetError ret = [ms startMeetingWithStartParam:param];
NSLog(@"onMeetNow ret:%d", ret);
return;
```

## Start meeting status

To discover whether the start meeting action is successful, or to get
the error message, implement the `onMeetingStatusChange` method:

```swift
- (void)onMeetingStateChange:(MobileRTCMeetingState)state;
{
    NSLog(@"onMeetingStateChange:%d", state);

    // ...
}
```