Yes. However, if you reach the Data Cap limit, your chargeable data roaming usage will be barred and you can’t use the data service unless you purchase an add-on or unblock your data cap.
Avoid background noise. Whether you have music playing in your office, or you’re sitting in a coffee shop, background noise can make it difficult for your customers to understand your greeting. Limit the noise around you when you leave your voicemail greeting.

If your carrier supports the iPhone voicemail feature, you can retrieve and listen to your voicemail right from within the “Phone” app and call your contacts back by simply tapping their messages. That type of functionality is pretty neat and useful, because it saves you actual time. If not supported by your carrier, you will not be able to see the visual overview of your voicemail inbox and use any of the related features. Tapping the “Voicemail” tab in your “Phone” app will simply call the number associated with your voicemail box. So let’s get going with creating our custom voicemail greeting on iPhone! How to record your own Voicemail on iPhone Phone → Voicemail → Greeting → Custom → Record → Save
Setting up your voicemail. 1. Press and hold 1. 2. Enter your password if prompted. If you are asked for a password the first time you access your voicemail, just enter the last four digits of your phone number. 3. Follow the directions to set up your password. 4.