ISDN Primary Rate Service offers you the power to create a seamless communications system that speeds and smoothes the flow of information without the expense of dedicated lines, modems, and special cabling.

Primary Rate Service links your PBX to our advanced central office systems to provide you with global, digital connectivity and the full functionality of Centrex service.

Primary Rate Service is the end-to-end digital network architecture that allows users around the world to transmit voice, data, video, and image – separately or simultaneously – over standard telephone lines or fiber optic circuits via standard interface.

A single ISDN channel is a fast and flexible information management tool, but Primary Rate Service is two dozen times more powerful - bundling 24 ISDN channels for delivery to your premises.

The Primary Rate Service configuration is known as 23B+D: 23B channels for transport of voice, data, video, and image at 64 Kbps., plus a single D channel for call setup and control. The 23B channels can be used as is, or rearranged in a wide variety of ways to accommodate highly-specific user needs.

Key Applications

• LAN interconnection
• Video conferencing
• Virtual office
• Backbone LAN access
• Voice and data integration
• Image transfer
• Business continuation and disaster recovery
• PBX

• Greater access
• Economy with bandwidth available on demand
• Borderless communications
• Exceptional flexibility
• Digital speed and accuracy
• Fast, reliable backup for lines and host computers