The one drawback to Fiverr is you won’t be working directly with the artist in a studio and providing immediate feedback. Because of this, you could end up with a project that’s not 100% what you had in mind.
It’s a good practice for each of your team members to have their own personal business phone numbers. There are many reasons why they shouldn’t use their personal cell phone number for business, so you’ll want to give them their own phone number through your VoIP provider or phone system.

From the Skype for Business desktop app (if you are running Click-2-Run build C2R 8201.1002 or later), select Set Up Voice Mail. Change your Call Answering Rules You can change what options your callers have when they reach the voicemail service; get disconnected, hear your greeting, record a message, choose to be transferred to the number or user you select. Change your prompt language This is the prompt language that is played to callers. For list of supported languages, see Languages for voicemail greetings and messages from Skype for Business. Configure your Out of Office greeting This is the customized greeting message that is played to callers when your status is Out of Office. This option can be activated "Always," when you have an active "Auto Reply" in Outlook, or whenever you have an out-of-office calendar appointment. 
Chances are that when someone takes the time to leave your business a voicemail, it is because it’s important that their message be communicated and left in the right hands. There’s nothing worse than calling a business only to hear that the voice mailbox is full or that the greeting is too quiet, too fast, or too confusing.