Yay are consistently flawless. As a small but expanding ISP, we chose Yay to provide a reliable and feature-rich VoIP service to accompany our fibre-to-the-home broadband service. Yay offers all the flexibility that we needed in terms of product features, ease of use, compatibility with SIP endpoints and convenient API access to control all areas of one's account. Their support team is what really sets them apart from the competition. Any query is dealt with quickly and efficiently and almost always by the first person that you speak to, all of the team are so knowledgeable in all areas and can resolve or advise on any questions themselves without needing to put you on hold or escalate to anyone else. We're confident that Yay will continue to meet our needs as we expand to hundreds and eventually thousands of customers.