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Keep your workforce, partners and customers connected with voice services delivered on our reliable global network and SIP platform.

Simple and scalable calling for global enterprises

Contact us to discuss your next-gen SIP voice needs.

Next-Generation SIP Voice Services from Lumen  

Lumen SIP solutions enable you to supply optimised customer experiences with connections that improve productivity and provide a reliable, feature-rich and cost-effective solution.

Business woman sitting at a desk talking on the phone in front of a computer monitor next to a window

Simple & scalable calling for global enterprises

SIP Long-Distance Services

This solution enables you to place interstate, intrastate or international outbound calls over a dedicated or switched connection.

Business woman working with a headset on

Enterprise SIP Toll-Free Services

Keep costs down and deliver maximum value with Lumen Enterprise Toll-Free service, which includes powerful features to help boost efficiency.

Business woman sitting at a desk talking on the phone in front of a computer monitor

SIP International Local Inbound

High-performance connections provide origination for U.S. national and international telephone numbers through a single IP point of interconnection.

Business man talking on the phone in front of a computer
Illustration of a laptop screen with a globe icon on it and three lines connecting a phone, headset and building icon

Features and Specifications

  • Competitive rates
  • Outbound service to 30+ countries in North America, South America, Europe and Asia
  • Termination to more than 190+ countries
  • Streamlined billing and administration under a single vendor

  • Dedicated and switched solutions
  • Low, puncture service rates for interstate, intrastate and international calls
  • Proven, reliable network

  • Local coverage in U.S., Latin America, Europe and Asia
  • Consolidate multiple origination points
  • Options to scale up or migrate as needed
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