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VIClient *client = [[VIClient alloc] initWithDelegateQueue:dispatch_get_main_queue()];client.sessionDelegate = self;[client connect]; // Login and start a video call- (void)clientSessionDidConnect:(nonnull VIClient *)client {  [client loginWithUser:@"foo@bar.baz.voximplant.com"               password:@"p@ssw0rd"                success:^(NSString * _Nonnull userDisplayName, VIAuthParams * _Nonnull                authParams) {                    VICallSettings *settings = [[VICallSettings alloc] init];                    settings.videoFlags = [VIVideoFlags videoFlagsWithReceiveVideo:YES                    sendVideo: YES];                    VICall *call = [client call:@"Alice" settings:settings];                    [call start];                }                failure:^(NSError * _Nonnull error) {                     // error handling                }];}

// Initiate an outbound call based on the dialed numberVoxEngine.addEventListener(AppEvents.CallAlerting, (e) => {    const newCall = VoxEngine.callUser({        username: e.destination,        callerid: e.callerid,        displayName: e.displayName,        video: true,        scheme: e.scheme   });     // Connect the inbound and outbound call legs    VoxEngine.easyProcess(e.call, newCall, () => {});});