The Level 3® Enterprise IP Trunking service provides Public Switched Telephone Network (PSTN) access for IP PBXs through Level 3 dedicated native IP connections, delivered directly to the enterprise LAN/WAN. The Enterprise IP Trunking service is ideal for customers who prefer the simplicity of direct IP access to the PSTN for their IP PBX instead of TDM connections. The service operates on the Level 3 Tier-1 IP backbone, one of the largest and most advanced in the world.
Our Enterprise IP Trunking service has diversity and redundancy built into the physical network and the VoIP service infrastructure to enhance reliability and performance. All Voice over IP (VoIP) traffic remains on the Level 3 premium IP backbone until it reaches the PSTN, which helps improve overall service quality and ease problem resolution.
The Level 3 Enterprise IP Trunking service:
- Provides superior network reliability and performance with redundancy throughout the Level 3 infrastructure.
- Enables cost-savings by supporting the convergence of voice and data traffic, and by lowering capital expenses by helping you eliminate IP PBX gateway hardware.
- Maintains high-quality service by keeping all VoIP traffic on the Level 3 IP backbone until it reaches the PSTN.
- Supports business continuity with specialized features for disaster recovery and mobility.
- Available in over 70 U.S. markets.
Certified IP PBX Platforms:
- Cisco® Unified CallManager 5.0
- Cisco® Unified CallManager Express 4.0(3)
- Future software revisions and platforms supported subject to interoperability testing