Voice over internet protocol (VoIP) tools help connect your voice to ears across the world or across state lines. They make distance feel smaller by emphasizing simplicity of communication, be it textual, audio or video. Many companies implement VoIP tools globally in efforts to broaden their horizons and increase accessibility. The following VoIP products listed on G2 are either free or offer a limited-time free trial. Free trials are beneficial to consumers who wish to be comfortable with a product before landing on a solution. Trials often come with all of the support features associated with a membership, so buyers also can determine if quality of support is adequate. If you're in the market for a VoIP tool, consider one of the following free or free trial VoIP solutions that exhibit the most reviews on G2. Below you can find the best free VoIP service providers, based upon real-user reviews.