Step 7: If you want to record all the calls you make or receive, select the All numbers option. If you wish to record calls from the numbers that are not saved in your contacts, select the Unsaved numbers option. You can even choose some select numbers manually that you wish to record calls to and from by clicking the Selected numbers option, then tapping Auto record numbers, and then add the numbers that you desire by typing them manually or adding those numbers from your Recents or Contacts lists.
When I go into the greeting page the page is is not working , touching play / record does nothing. Can’t change anything.

Creating a professional voicemail greeting isn’t complicated, but you need to keep a few things in mind to ensure success. The following tips will help: Be friendly and welcoming - let your company's personality shine!; Have a clear voice, speak at a slow to moderate pace, minimize background noise; Ensure the greeting is human and approachable; Keep the greeting short and informative; Ensure the greeting doesn’t sound robotic or unnatural; Show your gratitude for the call by saying thank you; Manage expectations by clearly stating when the client can expect a callback.
Tip: If you’re not sure how to leave a good voicemail, check out the most effective voicemail script ever and how to end a voicemail that keeps the sales conversation open.