O1 Communications' voice services are delivered over its pure IP network for a seamless VoIP solution. VoIP is a superior alternative to traditional analog telephone lines that offers substantial cost savings, rich features, and greater flexibility.

O1's network allows multiple voice packets to travel over a high-speed data connection that can be shared with data network traffic. When users are not making telephone calls, the extra bandwidth is available to the network for faster Internet access, application performance, and data transfer.

O1's voice packages include all standard calling features and advanced features such as unified messaging, voicemail delivered as email, custom sound recordings and powerful reporting tools. All voice packages come with unlimited local and long distance calling.