Lumen SIP Trunking
VoIP providers
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$8 per concurrent call path, per month
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What is Lumen SIP Trunking
Lumen SIP Trunking is a SIP trunk service that connects an organization’s IP-PBX or unified communications platform to the public switched telephone network (PSTN) for inbound and outbound calling. It is used by IT and telecom teams to replace or augment legacy PRI trunks, consolidate voice connectivity across sites, and support call center or enterprise telephony deployments. The service focuses on carrier-provided voice transport, numbering, and call routing rather than providing an end-user softphone or contact center application.
Carrier-grade PSTN connectivity
The product provides direct SIP trunk access to the PSTN through a large telecom carrier rather than relying on an over-the-top application layer. This can be a fit for enterprises that want a dedicated voice connectivity service to support an existing PBX or UC deployment. It also supports centralized trunking models where multiple locations route calls through shared trunks.
Enterprise telephony integration focus
Lumen SIP Trunking is designed to interoperate with enterprise voice environments where organizations manage their own call control. This aligns with use cases such as migrating from PRI to SIP while keeping existing PBX features and dial plans. Compared with app-centric VoIP suites, it is oriented toward network and voice engineers who need trunking, routing, and number management.
Scales for multi-site deployments
SIP trunking is commonly used to aggregate voice traffic across multiple offices and contact center locations, and this service targets those scenarios. Centralized trunks can reduce the need to maintain separate local circuits at every site. The carrier model can also simplify contracting when voice connectivity is part of a broader network services relationship.
Not a full UCaaS suite
This product is primarily a SIP trunking service and does not replace a complete cloud phone system by itself. Organizations still need an IP-PBX/UC platform, endpoints, and administration for user calling features. Buyers looking for bundled softphones, team messaging, and built-in contact center functions may need additional products.
Implementation requires telecom expertise
Deploying SIP trunks typically involves SBC configuration, dial plan work, E911 setup, and coordination of number porting. These tasks can require specialized voice/network skills and change management across sites. For smaller teams, this can be more complex than adopting an all-in-one hosted VoIP application.
Feature set depends on PBX
End-user calling features (queues, IVR behavior, recording, analytics, and agent tools) depend largely on the connected PBX or contact center platform, not the trunk itself. As a result, evaluating the overall solution requires assessing multiple vendors and components. Troubleshooting can also span the PBX, SBC, LAN/WAN, and carrier network.
Plan & Pricing
Pricing model: Measured / usage-based (per concurrent call path) Free tier/trial: Free plan: Unavailable; Free trial: Unavailable Pricing: Measured plans starting at $8 per concurrent call path, per month (12-month term required). Monthly rates include listed features but exclude applicable monthly usage, optional add-on products and services, taxes and fees. Contact sales for detailed rate sheets (local minute usage rates) and for custom/enterprise pricing. Notes: Listed rates are available to qualifying business customers purchasing service for an eligible U.S. location or limited international location. Measured plans include the listed per‑user CCP charge and a usage rate for local minutes (see Lumen rate sheet). Early termination fees and other restrictions may apply; credit approval may be required.
Seller details
Lumen Technologies, Inc.
Monroe, Louisiana, USA
1930
Public
https://www.lumen.com/
https://x.com/lumentechco
https://www.linkedin.com/company/lumentechnologies/
