Lumen Voice Complete is a comprehensive, global solution offered in all 50 states and five core European countries that enables you to use SIP-based services and APIs to maximise performance, enhance reliability and simplify management without having to replace TDM technology.
VIDEO: See how Voice Complete works (3:13)
Recognition
Lumen remains the leader in SIP trunking
We have claimed the top spot on the Omdia SIP Trunking Service Provider Scorecard: North America for the sixth consecutive year. See how we rank in key categories such as installed base, financial stability, market share momentum and more.
Centralise voice traffic and share idle call capacity across your organisation with built-in failover protection. Customise and streamline your enterprise communications with our expert guides and robust APIs to help stretch your budget further.
Establish a foundation for growth
Leverage existing equipment to easily expand your network and adopt integrated UC&C applications for your global workforce. Our network provides the scalability to meet changing business demands and adopt new technologies.
Simplify vendor and technology management
Streamline your communications environment with a comprehensive solution, robust APIs and a single vendor and contract offering unified pricing, SLAs and invoicing.
Features and Specifications
IP or TDM PBXs support direct connections to the public switched telephone network (PSTN) with no need for added conversion equipment
Telephone numbers, local, long distance/national, freephone, emergency services and international calling capability
Flexible access options via Lumen® MPLS/IP VPN, Lumen® Dedicated Internet Access or bring your own bandwidth
The self-service portal helps you manage voice features and change requests
Built-in network diversity levels and configurations appropriate for your business
Securely deploy Voice Complete services on any platform using the latest RESTful API technologies, including:
OAuth 2.0 and 64base encoding in the Authorisation header
Swagger/OpenAPI Specification 3.0 with downloadable YAML files
Synchronous and asynchronous response
Webhook/call backs to receive real-time push notifications
Interactive "try me" functionality and test environments
Fast response times and microservices
Process transactions through your chosen systems and gain deep insight into your services
Lumen API Marketplace offering a single source for finding, consuming and registering applications through a simple web registration and login process
VC 911 Address Change API enables you to manage large numbers of Voice Complete telephone numbers and update addresses for emergency dispatch services
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