v3.1.0
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COLLABORATION

Voice & Unified Communications

Lumen's voice and collaboration portfolio spans cloud voice, SIP trunking, hosted PBX, and managed Microsoft Teams calling — backed by one of the largest SIP footprints in North America and 30+ years of UC&C expertise.

30+YEARS OF UC&C EXPERTISE
Four workers chat in a modern office (semantic substitute — no voice-specific hero in pictures.json)
LargestSIP trunking provider in North America
30+ yrsUC&C expertise
6global SBC data centers for Teams Direct Routing
Multi-vendorZoom / Microsoft / Cisco integration

Voice & UC portfolio

Microsoft Teams Operator Connect spotlight (deferred — type-only render)
CARRIER PARTNERSHIP

Microsoft Teams Operator Connect — carrier-grade calling, native in Teams.

Lumen is a Microsoft-certified Operator Connect carrier with high-availability SBCs in 6 global data centers. Keep your existing phone numbers, get dynamic 911, and run Teams Phone with carrier-grade PSTN over the AS3356 backbone — the #1 peered network in the world. Operator Connect, Direct Routing, 6 SBC data centers, dynamic 911, 24/7 Lumen support.

American Family Care logo

American Family Care

With Lumen, we have been able to stay ahead of emerging technologies and make sure that our business remains safe.

Claudius Moore, CIO, American Family Care
<2%dropped call rate
99.9%uptime
$30K/mosavings across 200+ clinics in 26 states
Collaboration alliances
MicrosoftZoomCisco