Who I have the same questioned this topic

I recently switched my landline to 1-VoIP from Vonnage. Whenever any friends or family call my landline from their Verizon wireless they receive a message saying “this is not a working number”. I never had a problem with Vonage. 

Any ideas?  1-VoIP says it’s not on their end. Other wireless companies can call through. Only Verizon is rejected.