Y Combinator graduate OpenPhone is raising a $2 million funding round led by Slow Ventures. The company is working on an app that lets you seamlessly get a business phone number without a second phone or a second SIM card. Y Combinator, Kindred Ventures, Garage Capital, 122WEST Ventures and others are also participating in today’s funding round. Compared to Aircall and other enterprise solutions, OpenPhone targets small and medium companies who want a mobile-first, easy-to-use solution to take advantage of a second phone number. For instance, if you’re a freelancer and you hate handing out your personal phone number, OpenPhone lets you separate your personal and professional life more easily. OpenPhone works on iPhone, iPad and Android.