Laravel - Notifications - Unicode Content

If your SMS message will contain unicode characters, you should call the unicode method when constructing the NexmoMessage instance:

    
    /**
     * Get the Vonage / SMS representation of the notification.
     *
     * @param  mixed  $notifiable
     * @return \Illuminate\Notifications\Messages\NexmoMessage
     */
    public function toNexmo($notifiable)
    {
        return (new NexmoMessage)
                    ->content('Your unicode message')
                    ->unicode();
    }