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Make and receive high quality audio calls whatever your location, whatever your connection. Innovative systems and technologies offer reliable, real-time sound clarity and richness whether making calls via the Yay.com app, your desktop VoIP phone or web browser. So whether you're looking for a small business phone system or large enterprise system, you'll find that we provide call quality you can rely on while using only a tiny fraction of your internet bandwidth. With call quality surpassing those experienced via PSTN (public switched telephone network) landlines, you'll wonder how you ever did without our business phone system.