Google Voice offers an alternative to teachers who are concerned about distributing phone number. The service allows you to set up a number that you can then direct to voicemail or other phone numbers based on the who is calling. For example, if it’s an unknown number, you can send it directly to voicemail. If it’s a personal call, you can have it go to your home number, or if it’s a parent calling, you can have it rerouted to your classroom. Google Voice will also transcribe voicemails to text.