SIP Trunk

Manage Costs and Consolidate Infrastructure with SIP Trunk

Consolidate your voice traffic over our robust data network and maximize the potential of your IT budget.

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CenturyLink SIP (Session Initiation Protocol) Trunk is a scalable solution that enables the origination and termination of local voice and dedicated long-distance, as well as domestic and international toll-free service across a streamlined data connection. SIP Trunk gives you the security and reliability of MPLS while making the most of your current infrastructure to provide high quality voice services.

Benefits

Scales with Your Business

Support multiple locations on one service.

Increase Reliability

Gain the confidence and reliability of MPLS for voice service.

Leverage Existing Investments

Expand operations inexpensively by leveraging existing equipment (IP-PBX) for new locations.

Manage Costs

Aggregate multiple voice networks and their associated costs.

Keep Existing Phone Numbers

Port existing POTS (Plain Old Telephone Service) numbers to VoIP (Voice Over Internet Protocol) service.

Online Monitoring & Support

Access network configurations, performance monitoring, trouble ticket submissions, and tracking from any Internet connection.

Features

Domestic and International Toll-Free Service* 

Control Center Online Network Management Tool

Inherent Benefit of Closed Networking with Purchase of MPLS Private and Enhanced Ports

Dedicated Long-Distance*

Flexible Scalability

Switch Diversity*

Competitive SLAs

Local Number Portability Support

Emergency 911 Service

*Off-Net Long Distance, domestic and international Toll Free, and Switch Diversity are available as an option. Additional charges apply. CenturyLink IQ® Networking ports are purchased separately from the CenturyLink SIP Trunk service.

Why SIP Trunk?

See how SIP Trunk addresses the following challenges. (Click to expand)

Reduce costs

What we can do for you:

  • Manage your call volume efficiently by subscribing to multiple numbers per session.
  • Aggregate multiple locations behind one trunk group.

Net Benefit:

  • A converged network, integrating all of your voice needs.

Increase productivity

What we can do for you:

  • Deliver voice & data over our OC-192 IP data backbone—one of the most advanced networks available.

Net Benefit:

  • Simplify configuration and management with the CenturyLink online customer management portal.

Security & reliability

What we can do for you:

  • Provide inherent security through MPLS Private Ports.
  • Provide redundancy with Switch Diversity.

Net Benefit:

  • The robust QoS ensures that time-sensitive network traffic is prioritized and routed correctly.

Scalability

What we can do for you:

  • Ability to leverage existing equipment (IP-PBX) for new locations.

Net Benefit:

  • Support multiple locations with one service.
  • Expansion of your operations without an expensive overhaul to your current infrastructure.
SIP Trunk Infographic

SIP Trunk offers companies of all sizes flexibility to meet ever-changing needs.

Network Maps

The CenturyLink network covers the entire continental United States and has one of the largest fiber footprints. Internationally, we provide coverage to hundreds of destinations.

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Contact an Expert

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