As of my last update in September 2021, Delta Call back offers a callback feature that allows you to request a callback from a customer service representative instead of waiting on hold. This can be a convenient way to avoid long wait times on the phone. However, please note that procedures and policies might have changed since then. Here's how you could typically request a Delta callback:

• Call Delta Airlines: Call Delta's customer service phone number. You can usually find this number on the Delta Airlines website.
• Navigate the Phone Menu: Listen to the automated menu options. Some menus might offer an option for a callback.
• Select Callback Option: If there's an option for a callback, follow the prompts to select that option. This might involve pressing a specific number on your phone keypad.
• Provide Information: Depending on the system, you might need to provide some information such as your name, phone number, and possibly your booking or reservation number.
• Wait for Callback: After you've provided the necessary information, the system will place you in a queue for a callback. You'll receive a call from a Delta customer service representative when it's your turn.
• Answer the Callback: When you receive the callback, answer your phone promptly to speak with the representative. Be sure to have any relevant information or questions ready.

Keep in mind that the availability and process for requesting callbacks can vary depending on Delta's current policies and the options they provide through their customer service phone system. If the callback option isn't available or you're unsure about the process, you can always choose to wait on hold to speak with a representative directly.

To get the most accurate and up-to-date information about Delta's callback service, I recommend visiting the official Delta Airlines website or reaching out to their customer service directly.