Cars & Other Vehicles Is Vonage going out of business? Is Vonage going out of business? IMPORTANT: Vonage Mobile will be discontinued on February 28, 2020. To avoid losing any existing call credits, they must be used before the discontinued date as no refunds are issued. Thank you for your business.2020-10-05 Related Posts:What can Vonage do?How do I make an international call with Vonage?Can I transfer my OU credits?Can you buy more InMails on LinkedIn Sales Navigator?