After setting the number on your voicemail, you must also record a personal voicemail greeting. Follow the steps below. Start the Phone app. if you don’t see the numeric keypad, tap “Keypad” at the bottom of the screen. Tap and hold the “1” for about two seconds until the phone automatically calls voicemail. Immediately tap “3” to access voicemail settings. Listen to the options. On most voicemail systems, tap “2” to start the process to record a new greeting. The current personal greeting will play; then tap “2” again to record a new greeting. Say the greeting you want, and tap “#” when you’re done. To save the greeting, tap “1.” The personal voicemail greeting has been set. Hangup the phone. How to setup voicemail using a Visual Voicemail Applications
What kind of company do you run? A law firm may prefer more formal business voicemail greetings than a trendy retail store, for example.

You can: Press and hold 1. Dial *86. Dial your Xfinity Mobile phone number. NOTE: If it's your first time calling into voicemail, follow the recorded instructions to create a voicemail PIN. You’ll then record your name and set up a greeting. After completing the setup process, follow the prompts to listen to your messages or change your
Once you click greeting, you can change it from default to custom and record your custom greeting. Press play to listen to it before saving it.